### Description
<!-- Describe your changes. -->
- Support multiple include/exclude values.
- e.g. can now run with `-i MacOS -i iOS` to run CIs for both Apple
platforms.
- Default to current branch if run from directory in repo.
- make lazier usage possible
### 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. -->
Improve tools.
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Co-authored-by: Edward Chen <18449977+edgchen1@users.noreply.github.com>
### Description
<!-- Describe your changes. -->
Add helper to run CIs for a branch using `az pipelines`.
This can be used to easily kick off multiple CIs for a branch prior to
creating a PR.
Update run_CIs_for_external_pr.py so the CI list can be shared.
Request json output from `gh pr view` so the current state is more
easily parsed.
### 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. -->
