Updated git submodules

Project: appc master 7f42758f8292e1440a63867ec5d885abc35e38a4

ChefAdapterImpl junits

- Added new Junit class ChefAdapterImplVNFCOperationsTest
- Added unit tests for method vnfcEnvironment
- Small refactor to for exception handling in vnfcEnvironment method to
improve readability and avoid catching and rethrowing same exception

Change-Id: I58a43390ff45598f6d17da48eed3620667008cb7
Issue-ID: APPC-437
Signed-off-by: Michal Kabaj <michal.kabaj@nokia.com>

diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index f1bd958..7f42758 160000 (submodule)
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit f1bd95884be20932a3ab7a92440e9e306902c1a0
+Subproject commit 7f42758f8292e1440a63867ec5d885abc35e38a4