feat: seperate build & runtime scriptable options configure()

[vaind]

closes #609

• adds build-time ScriptableOptionsConfiguration class
• renames PerformanceAutoInstrumentation option with PerformanceAutoInstrumentationEnabled and makes it part of SentryUnityOptions
• fixes SetScript() after a new custom configuration script is created through Editor window UI
• moves integration test configuration BuildtimeOptions.Configure() and RuntimeOptions.Configure()
• docs update PR: unity: programmatic configuration changes sentry-docs#5738

[github-actions]

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

Generated by 🚫 dangerJS against ba040e7

[vaind]

If we wanted to have this covered in integration test, we could use the ConfigureAtBuild() instead of this script: https://github.com/getsentry/sentry-unity/blob/d1c049150eae6a3f6fe0a530e24a3fe8ef84c3cf/test/Scripts.Integration.Test/configure-sentry.ps1 - and our build would also be a little faster

WDYT @bitsandfoxes ?

[bitsandfoxes]

If we wanted to have this covered in integration test, we could use the ConfigureAtBuild() instead of this script:

That's a fantastic idea!

[bitsandfoxes]

Other than the not throwing this looks great to me!
We're gonna break all the people with this, aren't we?

changes

[bitsandfoxes]

Pure 🔥 !