Input proto containing Keyboard atoms

Created input_extension_atoms.proto to contain atoms related to input.
Added the KeyboardConfigured atom to log keyboard layouts configured
when a device is connected, as well as whether it is a first time
configuration.
Added the KeyboardSystemsEventReported atom to log shortcut usage on the
physical keyboard.
Created enums.proto for input to contain enums related to input atoms.

Bug: 280423320, 280603577
Test: Build
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:302bc3112f682e8b204235225a2cd790b90c62fd)
Merged-In: I07d6ec04e714f7c34f98c4abfe98d983da969d1a

Change-Id: I07d6ec04e714f7c34f98c4abfe98d983da969d1a
4 files changed
tree: 942e2961546bb87f3b2175fd8b5cef52e348953f
  1. stats/
  2. OWNERS