Implement keymint V1 aidl interfaces, service module, and vts tests.

Bug: b/160968242
Test: atest VtsHalKeyMintV1_0TargetTest

Change-Id: I5f9d642f96e262dd567d88f4d582e621d168dceb
diff --git a/keymint/aidl/OWNERS b/keymint/aidl/OWNERS
new file mode 100644
index 0000000..5c79db8
--- /dev/null
+++ b/keymint/aidl/OWNERS
@@ -0,0 +1,3 @@
+jdanis@google.com
+seleneh@google.com
+swillden@google.com