Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Small fix to network/project when creating ports and
    added new tests for routers that create ports to external
    and shared networks created by the 'admin' user.

    Change-Id: I0365e9843e0837d720ca8dd907c45afa2c512047
    Signed-off-by: spisarski <s.pisarski@cablelabs.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 821d862..e3fd866 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 821d86248054017ea8ac40b99759df71fa639e3b
+Subproject commit e3fd866cceaa621617f5b9efc8dd23c19d56ab11