Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 17632353502e1750d96b21dc6b201994b626d481
  - Merge "refactor camunda client in apih"
  - refactor camunda client in apih

    Switched CamundaClient to use restTemplate
    Combined clients into one CamundaClient
    Initial setup of exception handling in camundaclient
    Initial fix of compilation issues
    Switched CamundaClient constructor
    Updated how url is set in CamundaClient
    Updated auth to fix tag mismatch warning
    Added throwing ClientConnectionException to client
    Updated ServiceInstancesTest cases
    Updated error handling for CamundaClient
    Updated how response is returned
    Fixed failing unit tests in apih infra
    Refactored response handler for responseentity
    Fixed failing unit tests in apih
    Removed old unit tests for client
    Import cleanup for unneeded changes
    Updated to use new CamundaClient
    Updated CamundaClient and ResponseHandler tests
    Removed unused RequestHandler

    Issue-ID: SO-2834
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: I82ff489c9c939a7e8ec0e48476daf7e45baa5f20