Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 6979549db55e84227f4efde58ee58159c8219099
  - Merge changes I00b02c80,Icf854fba,I41a7ea89,I3c9b75ba

    * changes:
      add instantiation flow
      add pre_instantiation details
      add the information of the instantiate in dev guide
      correct the camunda modeler info Introduce the instantiate flow details

  - add instantiation flow

    Issue-ID: SO-608

    Signed-off-by: seshukm <seshu.kumar.m@huawei.com>
    Change-Id: I00b02c80c357ce5379d89769a3552e826ef257cc

  - add pre_instantiation details

    Issue-ID: SO-608

    Signed-off-by: seshukm <seshu.kumar.m@huawei.com>
    Change-Id: Icf854fba5ea3c94a0b320ed5fef6375a688b040f

  - add the information of the instantiate in dev guide

    Issue-ID: SO-608

    Signed-off-by: seshukm <seshu.kumar.m@huawei.com>
    Change-Id: I41a7ea89245da8be8e1a1e41138a662e9cce2ffa

  - correct the camunda modeler info
    Introduce the instantiate flow details

    Issue-ID: SO-608

    Signed-off-by: seshukm <seshu.kumar.m@huawei.com>
    Change-Id: I3c9b75ba734b918d2ee57242944b4b087e9e5792