[owners] Add OWNERs files to mesa

Bug: 77805
Change-Id: I3ca2ad4f1ce5aa1be80e9b4c496c8544d3df8b66
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/mesa/+/536929
Reviewed-by: Craig Stout <cstout@google.com>
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..195d335
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,5 @@
+reveman@google.com
+jbauman@google.com
+rosasco@google.com
+cstout@google.com
+rlb@google.com