Initial implementation of layoutlib SBOM generation.

1) Build/dist build.prop, resource files
2) Generate layoutlib SBOM that includes build.prop, resource files,
   font files and font configuration files
3) Generate SBOM of framework_res.jar with placeholders for substitution
   in release_layoutlib.sh

Bug: 303903787
Bug: 303904046
Bug: 303904808
Bug: 303905932
Bug: 303906000
Bug: 303906275
Test: lunch sdk_phone64_arm64-userdebug && m layoutlib dist
Change-Id: Ib004e199e740ccc901e93b11201db2477464be1d