Revert "Revert "Deprecate PackageParser#Package""

This reverts commit 8e18a0ab8980a3092d6c7e1d2edc6407655af609.

Exempt-From-Owner-Approval: Revert to re-add approved change

Change-Id: I5b5195470f365a2347cbf444cc0494d119e42ffc
110 files changed