- Rename `clang/{include,lib,unittests}/Analysis/Scalable/` to
`clang/{include,lib,unittests}/ScalableStaticAnalysisFramework/Core/`
- Update header-guards with their new paths
- Rename the library `clangAnalysisScalable` to
`clangScalableStaticAnalysisFrameworkCore`
- Add a new `Clang_ScalableStaticAnalysisFramework` module to
`module.modulemap`
- Update GN build files, GitHub PR labeler, and documentation
- Harmonise license comments
- Add a missing header-guard