Unbundle car-setup-wizard-lib

- Add gradle.build
- Update value/attr to avoid conflict
- Make a local copy instead of using hidden API XmlUtils
- Change android annotation to androidx annotation
- Use public Handle.hasCallbacks(callback) instead of the hidden
Handler.hasMessagesOrCallbacks()

Bug: 187445956
Test: built with Soong successfully, CarSetupWizardLibRoboTests passed. Built with Gradle successfully, tests passed with Gradle.
Change-Id: I5e76e66f005d55128dbb6122f7eae3c307c77feb
Merged-in: I5e76e66f005d55128dbb6122f7eae3c307c77feb
18 files changed
tree: 033a2ea54f61c1238a5e634fdcc6ee9b4c81fc3a
  1. library/
  2. OWNERS
  3. PREUPLOAD.cfg