Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to b619a05033211171ac61dd658282bc2cf1be77d9
  - Merge "update multi stage code to accurately skip bbs"
  - update multi stage code to accurately skip bbs

    moved around classes to packages that make more sense
    updated license headers in java files
    converted MultiStage logic to FlowManipulator
    moved tests to new package location and fixed issues
    allow for custom listeners before flowsToExecute
    moved validation classes to listener.validation

    Change-Id: Ic5416812ef9c5611fe19bf9b6aa316373b110ec6
    Issue-ID: SO-2021
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@us.att.com>