Add COMPONENT and TEAM information in OWNERS file

Bug: 977050
Change-Id: I969fbc59b3a94cc544097ad0ad850ce12bee70bd
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1845663
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

OWNERS

@@ -5,4 +5,5 @@ jmadill@chromium.org
 syoussefi@chromium.org
 ynovikov@chromium.org
 
-# COMPONENT: Internals>GPU>Angle
+# COMPONENT: Internals>GPU>ANGLE
+# TEAM: angleproject@googlegroups.com