[owners] Add OWNERs files to glslang

Bug: 77799
Change-Id: I5726fce1c7872dd251f290fecd153111eefbf131
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/glslang/+/536924
Reviewed-by: Yilong Li <liyl@google.com>
Reviewed-by: Josh Gargus <jjosh@google.com>
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..166185a
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,4 @@
+jjosh@google.com
+liyl@google.com
+cfontas@google.com
+