### Description
Run clang-format in CI. Formatted all c/c++, objective-c/c++ files.
Excluded
```
'onnxruntime/core/mlas/**',
'onnxruntime/contrib_ops/cuda/bert/tensorrt_fused_multihead_attention/**',
```
because they contain assembly or is data heavy
### Motivation and Context
Coding style consistency
### Description
Deprecate CustomOpApi and refactor dependencies for exception safety and
eliminate memory leaks.
Refactor API classes for clear ownership and semantics.
Introduce `InitProviderOrtApi()`
### Motivation and Context
Make public API better and safer.
Special note about `Ort::Unowned`. The class suffers from the following
problems:
1. It is not able to hold const pointers to the underlying C objects.
This forces users to `const_cast` and circumvent constness of the
returned object. The user is now able to call mutating interfaces on the
object which violates invariants and may be a thread-safety issue. It
also enables to take ownership of the pointer and destroy it
unintentionally (see examples below).
2. The objects that are unowned cannot be copied and that makes coding
inconvenient and at times unsafe.
3. It directly inherits from the type it `unowns`.
All of the above creates great conditions for inadvertent unowned object
mutations and destructions. Consider the following examples of object
slicing, one of them is from a real customer issue and the other one I
accidentally coded myself (and I am supposed to know how this works).
None of the below can be solved by aftermarket patches and can be hard
to diagnose.
#### Example 1 slicing of argument
```cpp
void SlicingOnArgument(Ort::Value& value) {
// This will take possession of the input and if the argument
// is Ort::Unowned<Ort::Value> it would again double free the ptr
// regardless if it was const or not since we cast it away.
Ort::Value output_values[] = {std::move(value)};
}
void main() {
const OrtValue* ptr = nullptr; // some value does not matter
Ort::Unowned<Ort::Value> unowned{const_cast<OrtValue*>(ptr)};
// onowned is destroyed when the call returns.
SlicingOnArgument(unowned);
}
```
#### Example 2 slicing of return value
```cpp
// The return will be sliced to Ort::Value that would own and relase (double free the ptr)
Ort::Value SlicingOnReturn() {
const OrtValue* ptr = nullptr; // some value does not matter
Ort::Unowned<Ort::Value> unowned{const_cast<OrtValue*>(ptr)};
return unowned;
}
```
1. Add support for vstest.
2. Add support for vcpkg. To use it:
```bat
vcpkg install zlib:x64-windows benchmark:x64-windows gtest:x64-windows protobuf:x64-windows pybind11:x64-windows re2:x64-windows
mkdir build
cmake ..\cmake -DCMAKE_BUILD_TYPE=Debug -A x64 -T host=x64 -DCMAKE_TOOLCHAIN_FILE=C:\vcpkg\scripts\buildsystems\vcpkg.cmake -DVCPKG_TARGET_TRIPLET=x64-windows -Donnxruntime_PREFER_SYSTEM_LIB=ON
```
3. New cmake option: onnxruntime_PREFER_SYSTEM_LIB, which allows user using the preinstall libs instead of the things in onnxruntime submodule.
4. New cmake option: onnxruntime_ENABLE_MEMLEAK_CHECKER, which allows user turn on/off the memory leak checker by @RyanUnderhill in Windows Debug Build. The checker doesn't work with vstest.
4. Fix the post merge pipeline(Mainly for test coverage report).
5. Ignore the compile warning from the Featurizer library code
6. Apply "/utf-8" VC compile flag to our code. Without this, you can't build onnxruntime on Chinese Windows.
7. Remove the SingleUnitTestProject cmake option because it's deprecated more than one year and nobody is using it.
8. Move opaque api tests to onnxruntime_test_all
9. Enable "/W4" on CUDA ep's C++ code(Not the *.cu files), and fix some warnings, add some extra checks.
10. Delete the onnxruntime::test::TestEnvironment class.
11. Add a DLLmain for onnxruntime.dll.
12. Allow dynamic link to libprotobuf
* Mention OrtCreateSessionFromArray in C API doc
* Don't create the default allocator every single time. Rename API accordingly.
* Don't create the default allocator every single time. Rename API accordingly.
* updates...
* updates...
* PR comments
* fix typo in license header
* fix build
* More C++ API improvements and conversions
* Mark more constructors as explicit
* Fix CSharp function name changes
* Change more test cases to use C++ API
* Make OrtAllocator not be reference counted
* Make the allocator interface more type safe
* Fix build break
* Build break fix
* Build break fix
* Mistake in previous build fix.
* Fix review comments + build break
* Missed the export symbols
* C specific error, need 'struct' keyword in one case.
* Function calling OrtReleaseObject instead of OrtReleaseEnv
Applies to all public headers and macros, plus many internal ones. There are still some internal things with OnnxRuntime in the name, but this fixes all public functions & macros.
