Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Crteated domain class for projects.

    Created Project domain class so keystone_utils.py functions returning
    project objects will not be leaking out implementation details as each
    API version can change these data structures and this should all be
    handled by the SNAPS keystone utility.

    JIRA: SNAPS-114

    Change-Id: Id7bce929604278c8228622161eba1838ecd5e067
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index e572055..f5f0f1c 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit e572055192d85954efa81dfa4b3ca5ad80db9434
+Subproject commit f5f0f1cbcb757a9229a92c3a7f4ea400db11dd07