Create new BroadcastBehavior annotation.

This will be used to help document the expected behavior of various
broadcast actions defined by the OS.

Also add logic to PackageParser that will then yell at developers
whose manifests are making bad assumptions about which broadcasts
they'll receive.

Test: builds, boots
Bug: 35925551
Change-Id: I059c2bf8aa3ce53d9ff18dcc263db7620cd14bd6