### Description
<!-- Describe your changes. -->
Various fixes to the CSharp setup
- fix warnings
- fix invalid tests
- update test sdk nuget package
- enables testing on linux
- fixes issue with some unit tests not running in CI
- run unit tests in linux pipeline using dotnet
### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->
Unit tests weren't breaking in CIs for both Windows and Linux builds and
should have been.
### Description
Implement Optional Type metadata support in the library.
Implement optional support in C# API along with metadata.
Implement Sequence, Map, Optional test data support
and test execution.
Prune tests and provide more details for failing tests in C# code.
Note, this PR does not enable running onnx test models in C++.
### Motivation and Context
Opset18 optional type support.
Bumps [Newtonsoft.Json](https://github.com/JamesNK/Newtonsoft.Json) from
13.0.1 to 13.0.2.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/JamesNK/Newtonsoft.Json/releases">Newtonsoft.Json's
releases</a>.</em></p>
<blockquote>
<h2>13.0.2</h2>
<ul>
<li>New feature - Add support for DateOnly and TimeOnly</li>
<li>New feature - Add UnixDateTimeConverter.AllowPreEpoch property</li>
<li>New feature - Add copy constructor to JsonSerializerSettings</li>
<li>New feature - Add JsonCloneSettings with property to disable copying
annotations</li>
<li>Change - Add nullable annotation to JToken.ToObject(Type,
JsonSerializer)</li>
<li>Change - Reduced allocations by reusing boxed values</li>
<li>Fix - Fixed MaxDepth when used with ToObject inside of a
JsonConverter</li>
<li>Fix - Fixed deserializing mismatched JToken types in properties</li>
<li>Fix - Fixed merging enumerable content and validate content</li>
<li>Fix - Fixed using $type with arrays of more than two dimensions</li>
<li>Fix - Fixed rare race condition in name table when deserializing on
device with ARM processors</li>
<li>Fix - Fixed deserializing via constructor with ignored base type
properties</li>
<li>Fix - Fixed MaxDepth not being used with ISerializable
deserialization</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="4fba53a324"><code>4fba53a</code></a>
Remove prerelease for 13.0.2</li>
<li><a
href="b15df4b50d"><code>b15df4b</code></a>
Add missing headers</li>
<li><a
href="789bfd3bbc"><code>789bfd3</code></a>
Update to 13.0.2-beta3</li>
<li><a
href="b13717a1c1"><code>b13717a</code></a>
Add JsonCloneSettings to disable copy annotations (<a
href="https://github-redirect.dependabot.com/JamesNK/Newtonsoft.Json/issues/2757">#2757</a>)</li>
<li><a
href="d0a328e8a4"><code>d0a328e</code></a>
Fix MaxDepth not being used with ISerializable deserialization (<a
href="https://github-redirect.dependabot.com/JamesNK/Newtonsoft.Json/issues/2736">#2736</a>)</li>
<li><a
href="aae9284e20"><code>aae9284</code></a>
Update SDK</li>
<li><a
href="bd989708b1"><code>bd98970</code></a>
Update to 13.0.2-beta2</li>
<li><a
href="4dc9af66e0"><code>4dc9af6</code></a>
Add roll forward to global.json (<a
href="https://github-redirect.dependabot.com/JamesNK/Newtonsoft.Json/issues/2726">#2726</a>)</li>
<li><a
href="b8f4ef0f98"><code>b8f4ef0</code></a>
Fixing misspelling (<a
href="https://github-redirect.dependabot.com/JamesNK/Newtonsoft.Json/issues/2698">#2698</a>)</li>
<li><a
href="cb9eed9666"><code>cb9eed9</code></a>
Fix deserializing via constructor with ignored base type properties (<a
href="https://github-redirect.dependabot.com/JamesNK/Newtonsoft.Json/issues/2711">#2711</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/JamesNK/Newtonsoft.Json/compare/13.0.1...13.0.2">compare
view</a></li>
</ul>
</details>
<br />
[](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)
Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.
[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)
---
<details>
<summary>Dependabot commands and options</summary>
<br />
You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)
- `@dependabot use these labels` will set the current labels as the
default for future PRs for this repo and language
- `@dependabot use these reviewers` will set the current reviewers as
the default for future PRs for this repo and language
- `@dependabot use these assignees` will set the current assignees as
the default for future PRs for this repo and language
- `@dependabot use this milestone` will set the current milestone as the
default for future PRs for this repo and language
You can disable automated security fix PRs for this repo from the
[Security Alerts
page](https://github.com/microsoft/onnxruntime/network/alerts).
</details>
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Add Xamarin support to the ORT nuget packages.
- Update C# code to support Xamarin builds for iOS and Android
- refactor some things to split out common code
- include iOS and Android ORT native shared library in native nuget package
