This addresses issues where some drivers are reporting they don't meet the vulkan hardware level 1 support requirements even though they render as expected when the check is removed.
- Add runtime check and abort when the device doesn't meet the requirements for vulkan support
- Add filters to the AndroidManifest when exporting with a vulkan renderer
The application module `app` serves double duties of providing the prebuilt Godot binaries ('android_debug.apk', 'android_release.apk') and the Godot custom build template ('android_source.zip').