Update git submodules

Update git submodules

* Update docs/submodules/modeling/modelspec.git from branch 'master'
  to 1fd426157cb65e7586ef5230a3065765ede0de2b
  - Updates to gendoc glossary script

    Slight update to gendoc glossary script

    Issue-ID: MODELING-104

    Change-Id: I625daf25d3665f6703b0e28cfdd490005245efee
    Signed-off-by: Kevin Scaggs <ks0567@att.com>
  - Slight updates to Vnf

    Slight updates to Vnf related to allotted resource.

    Issue-ID: MODELING-104

    Change-Id: If9682045cf1bf73cf56cb5b6b94ae0004cb1ed2f
    Signed-off-by: Kevin Scaggs <ks0567@att.com>