Updated git submodules

Project: appc master aa66fbf6fa7fcc8b30be71e8a85753ff0cd7b0c0

Unit test coverage for ActionIdentifiers.java

Sonar Link:
https://sonar.onap.org/code?id=org.onap.appc%3Aappc&selected=org.onap.appc%3Adomain-model-lib%3Asrc%2Fmain%2Fjava%2Forg%2Fonap%2Fappc%2Fdomainmodel%2Flcm%2FActionIdentifiers.java

Change-Id: I5ae2e24811e32b7c8c19780e9eb64f083aadd6ce
Issue-ID: APPC-606
Signed-off-by: amshegokar <AS00500801@techmahindra.com>
Update java files with correct license text

Adding license text for
1./src/test/java/org/onap/appc/mdsal/operation/TestConfigOperationRequestFormatter.java
2.src/test/java/org/onap/appc/yang/type/TestYangTypes.java

Change-Id: I902631c3ea8ea3d7cbffe5c9ac5c0027bf926de2
Issue-ID: APPC-602
Signed-off-by: amshegokar <AS00500801@techmahindra.com>

diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index 31b7112..aa66fbf 160000 (submodule)
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit 31b71128c229a12845e94139108a1696ec26de61
+Subproject commit aa66fbf6fa7fcc8b30be71e8a85753ff0cd7b0c0