Updates and fixes to the Android prebuilt export logic

[m4gr3d]

Updates

• Add the ability to insert meta-data tags for the prebuilt export logic
• Provide a mechanism via _update_android_prebuilt_manifest for gdextension plugins to hook into and update the Android prebuilt apk at export time
• Update the logic to retrieve the editor version and the project rendering method

Fixes

• Fix and clean up the logic used to insert uses-feature tags for the prebuilt export logic
• Fix the plugin export errors. The error should only show when using v1 (deprecated) plugins without using the gradle build
• Remove the gradle build requirement for enabling OpenXR
• Fix the bug causing the missing templates error to show even when the user defines valid custom templates

[dsnopek]

Thanks!

This is really great. :-) I like how it unifies some of the manifest changes (metadata and features) in both Gradle and APK-based builds.

I tested doing an OpenXR build using just an APK-based export (with an APK built from godot-sdk-integrations/godot-meta-toolkit#15) and it worked great. I also "decompiled" the APK with apktool and the manifest all looks good.

However, I'm not sure this is a good one for cherry-picking, at least not right away. There's the virtual method that's added here (which we don't usually add in patch releases), but it also just seems like a lot of changes. Maybe wait until it's gotten a bunch more testing in 4.5-dev releases first? I know there's some fixes mixed in here too - if some of them don't depend on the feature changes, maybe they could be extracted to another PR?

[m4gr3d]

However, I'm not sure this is a good one for cherry-picking, at least not right away. There's the virtual method that's added here (which we don't usually add in patch releases), but it also just seems like a lot of changes. Maybe wait a until it's gotten a bunch more testing in 4.5-dev releases first? I know there's some fixes mixed in here too - if some of them don't depend on the feature changes, maybe they could be extracted to another PR?

I've dropped the cherry-pick tag for now. We can re-evaluate once the PR is merged and gets more validation.

[syntaxerror247]

I think it might be a good idea to also add an option in the Export window to add meta-data tags. However this can be handled in a seperate PR.

[akien-mga]

Thanks!