Add new bugreport retrieval capabilities

Added the following functionalaity:
- Allow apps holding INTERACT_ACROSS_USER to retrieve the bugreport
  requested by the same app in a different user
- Add ability to retrieve the same bugreport multiple times
- Add ability for app to reattempt retrieve the bugreport if it was not
  conseted by the user the first time.

Bug: 302517677
Bug: 304272173
Test: manual testing
Test: atest CtsRootBugreportTestCases
Test: BugreportManagerServiceImplTest
Change-Id: I40bad3e1bf066348f073910e34319229ed05978e