Update git submodules

Update git submodules

* Update docs/submodules/externalapi/nbi.git from branch 'master'
  to 0360da34edc879a9902ca5d8dc3a4aa0789b449b
  - Migrate externalapi-nbi docs

    Merging this will create
    https://onap-externalapi-nbi.readthedocs.io
    This build will run in parallel
    to the current docs generation method
    until we are ready to cut over.

    Issue-ID: CIMAN-364
    Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
    Change-Id: I498cef0126dd202cc17f389bae3da38b73484588