Import 'regex-syntax' package vesion 0.6.17

* Add OWNERS
Bug: 152884384
Test: make

Change-Id: I760a69ffc851039ceaff58980deece308a426aed
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