Filter the content of the Bundles used as extras and styling APIs

Adds filter to prevent passing binder objects in the extras and styling
APIs for inline suggestions. Avoids these to be used to send over remote
objects for Autofill provider and IME to communicate through private APIs
bypassing the OS.

Bug: 152316540
Test: atest CtsAutoFillServiceTestCases
Test: atest InlineSuggestionsRequestTest
Change-Id: I00940a845ed0e2546cbe09fa36e2439869c2f783
7 files changed