Add Owners

Bug: skia:12124
Change-Id: If86855aabe0891395ccdcd0365b1515c918c3e88
Reviewed-on: https://skia-review.googlesource.com/c/libgifcodec/+/441809
Reviewed-by: Ravi Mistry <rmistry@google.com>

OWNERS

diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..72e8ffc
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1 @@
+*