Move system-clang-format to a central location.

So that system/core clang-format can be used in more places.

Bug: 122835115
Test: manual
Change-Id: I233a5003c4229126f37a89e90eac4a75dc5ad104
diff --git a/scripts/OWNERS b/scripts/OWNERS
new file mode 100644
index 0000000..076b3f5
--- /dev/null
+++ b/scripts/OWNERS
@@ -0,0 +1 @@
+per-file system-clang-format,system-clang-format-2 = enh@google.com,smoreland@google.com