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: cf507b60 am: 1fc03683 am: 02b661b7

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



Change-Id: I69d6ea8dff075ea7d04e4de8b584bd5d41e5d6aa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>