Add metadata files for crossbeam-deque.

Tests are disabled as they depend on rand-0.7 and we have rand-0.8 in
the repo.

Bug: 155309706
Change-Id: If5cb9cca0bbd7343cd9681699b3577fd72c21218
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..46fc303
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1 @@
+include platform/prebuilts/rust:/OWNERS