Add key character maps to layoutlib dist files

This makes key character map files from the framework part of the
layoutlib artifacts so that they can be used in Android Studio to
handle platform key events.

Bug: 255328531
Test: N/A
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:1894ff5c78ca33be85d983d28be42870bac0bed0)
Merged-In: I147159912f85daafc97364468d6a6c2cfa3916b8
Change-Id: I147159912f85daafc97364468d6a6c2cfa3916b8

NOTE FOR REVIEWERS - errors occurred while applying the patch.
PLEASE REVIEW CAREFULLY.
Errors:
Error applying patch in core/Makefile, hunk HunkHeader[7006,8->7006,8]: Hunk cannot be applied

Original patch:
 From 1894ff5c78ca33be85d983d28be42870bac0bed0 Mon Sep 17 00:00:00 2001
From: Jerome Gaillard <jgaillard@google.com>
Date: Mon, 24 Oct 2022 16:30:25 +0100
Subject: [PATCH] Add key character maps to layoutlib dist files

This makes key character map files from the framework part of the
layoutlib artifacts so that they can be used in Android Studio to
handle platform key events.

Bug: 255328531
Test: N/A
Change-Id: I147159912f85daafc97364468d6a6c2cfa3916b8
---