Verify that libraries in apexes don't link to implementations outside the apex

As part of removing some of the complexity in Soong around using
stub vs. implementations for shared library dependencies a syntax
will be added to Soong to allow explicitly selecting stubs vs.
implementation.  To avoid incorrect use, add a verification pass
on apexes that ensure that all transitive implementation libraries
used to link native libraries or binaries in the apex are
themselves in the apex.

Bug: 372543712
Test: TestApexVerifyNativeImplementationLibs
Flag: EXEMPT host only
Change-Id: I4aeaca00a359ce97e8f9efd2d8bffb8f9d2dc0df