Added FlowDirection override to RadialProgressBar and RadialGauge default style

[Avid29]

Fixes #4519

Adds a FlowDirection override to the RadialGauge default style. This is because RTL cultures still read gauges clockwise.

The flow direction can still be explicitly overridden if desired for whatever reason.

PR Type

What kind of change does this PR introduce?

Bugfix

What is the current behavior?

RadialProgressBar and RadialGauge directions unnecessarily inversed in RTL context.

What is the new behavior?

RadialProgressBar and RadialGauge directions no longer inversed unless FlowDirection is explicitly set.

PR Checklist

Please check if your PR fulfills the following requirements:

• Created a feature/dev branch in your fork (vs. submitting directly from a commit on main)
• Based off latest main branch of toolkit
• Tested code with current supported SDKs(https://github.com/CommunityToolkit/WindowsCommunityToolkit-design-assets)
• Contains NO breaking changes

Other information

[ghost]

Thanks Avid29 for opening a Pull Request! The reviewers will test the PR and highlight if there is any conflict or changes required. If the PR is approved we will proceed to merge the pull request 🙌