feat: Android Native Support

[bruno-garcia]

Replaces #149
Resolves: #95

submodule on a branch due to: getsentry/sentry-java#1711

Native crash support working

Repro is the sample button ThrowKotlinOnBackground

Note that ThrowKotlin is captured through the C# layer

Configure via the editor

Some options not yet available via android manifest

Note: if AndroidManifest manipulation doesn't run, we'll stop the app from launching due to:

java.lang.RuntimeException: Unable to get provider io.sentry.android.core.SentryInitProvider: java.lang.IllegalArgumentException: DSN is required. Use empty string to disable SDK

[github-actions]

	Fails
🚫	Please consider adding a changelog entry for the next release.

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Instructions and example for changelog

Please add an entry to CHANGELOG.md to the "Unreleased" section. Make sure the entry includes this PR's number.

Example:

## Unreleased

- Android Native Support ([#307](https://github.com/getsentry/sentry-unity/pull/307))

If none of the above apply, you can opt out of this check by adding #skip-changelog to the PR description.

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