The first step in the migration to required components! This PR removes
`GlobalTransform` from all user-facing code, since it's now added
automatically wherever `Transform` is used.
## Testing
- None of the examples I tested were broken, and I assume breaking
transforms in any way would be visible *everywhere*
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## Changelog
- Make `Transform` require `GlobalTransform`
~~- Remove `GlobalTransform` from all engine bundles~~
- Remove in-engine insertions of GlobalTransform and TransformBundle
- Deprecate `TransformBundle`
- update docs to reflect changes
## Migration Guide
Replace all insertions of `GlobalTransform` and/or `TransformBundle`
with `Transform` alone.
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Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: Tim <JustTheCoolDude@gmail.com>
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