Send extra when automatically removing packages (1/2)

Introduce a new extra field for ACTION_PACKAGE_REMOVED intent to
signal that the application was removed automatically without the
user-initiated action.

If the system automatically prunes a package [eg. an instant app], we
mark the broadcast with that information. Launchers or other applications
can use this information to potentially alter their behaviour.

Bug: 111318529
Test: atest CtsAppSecurityHostTestCases:EphemeralTest
Change-Id: I3a4690d7df6e2dce10b246fe20a627ba2eed5da0