Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 8e1de081db6c6c87d05687125c0316877ae1bec3
  - Merge "heatbridge implementation for openstack-adapter"
  - heatbridge implementation for openstack-adapter

    Converted heatbridge to use AAI Client
    Removed open feign
    Removed new aai client implementation
    Removed aai helper classes
    Removed unnecessary pom.xml imports
    converted HeatBridgeImpl to rely on AAI transactions
    added some example unit tests
    Replaced MsoLogger with slf4j
    Resolved merge conflicts

    Change-Id: I933b49fae82c2f0d7a66d9a85b367b29006c73cc
    Issue-ID: SO-1484
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@us.att.com>
    Change-Id: I547b35ebdf51f4534de5d51d7d50a90bb9de4c72
    Signed-off-by: Munir Ahmad <munir.ahmad@bell.ca>
    Issue-ID: SO-1484