Initial commit of Wear Tiles API.

Now with 100% fewer warnings ;)

Test: In a follow-up
Relnote: N/A
Change-Id: I89ec741fe3f90c980ebc42ab01ef7d9e3eb80f18

diff --git a/settings.gradle b/settings.gradle
index cae4b3a..a92d98f 100644
--- a/settings.gradle
+++ b/settings.gradle

@@ -513,6 +513,8 @@
 includeProject(":wear:wear-phone-interactions", "wear/wear-phone-interactions", [BuildType.MAIN])
 includeProject(":wear:wear-remote-interactions", "wear/wear-remote-interactions", [BuildType.MAIN])
 includeProject(":wear:wear-tiles", "wear/wear-tiles", [BuildType.MAIN])
+includeProject(":wear:wear-tiles:wear-tiles-proto", "wear/wear-tiles/wear-tiles-proto",
+        [BuildType.MAIN])
 includeProject(":wear:wear-tiles-data", "wear/wear-tiles-data", [BuildType.MAIN])
 includeProject(":wear:wear-watchface", "wear/wear-watchface", [BuildType.MAIN])
 includeProject(":wear:wear-watchface-complications-rendering", "wear/wear-watchface-complications-rendering", [BuildType.MAIN])