Add mechanism to add accessibility service or activity into bluetooth...

Add mechanism to add accessibility service or activity into bluetooth 'Related' category am: 02b37352 am: d42a72f5 am: faf67c0d am: 6ef9c139

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/17472403



Change-Id: I65f57ed5ff1b6a904c90515743b9ea4e93781f68
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>