Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 82f572688d0d9335bdea0cb323668cb128b030c3
  - added file to test SDCArtifact.java
    
    to increase code coverage
    
    Issue-ID: APPC-1086
    Change-Id: Id50d1ae6dd6323a6f3f0cb5a225cb141f143019c
    Signed-off-by: Sandeep J <sandeejh@in.ibm.com>
    
1 file changed