Public animation library unit tests - add manifest and test activity

The changes needed to allow running the tests in precommit

Test: atest
Bug: 271850966
Change-Id: Idb042eecc9be0e12085642c7c012a05350eb45a4
3 files changed
tree: 4865aadeb1d28549f56508710cec189cda4944ae
  1. animationlib/
  2. iconloaderlib/
  3. motiontoollib/
  4. searchuilib/
  5. viewcapturelib/