Update git submodules

* Update docs/submodules/snaps from branch 'master'
  - Merge "Add domain name when creating projects and users"
  - Add domain name when creating projects and users

    (spisarski)
    Also clarified the difference between domain ID and name
    Added helper methods and domain object for Domains

    JIRA: FUNCTEST-858

    Change-Id: Iccd7eef56713a4ad0c23232073f52bc71168bf5c
    Signed-off-by: Linda Wang <wangwulin@huawei.com>

diff --git a/docs/submodules/snaps b/docs/submodules/snaps
index 84d9026..1d3be66 160000 (submodule)
--- a/docs/submodules/snaps
+++ b/docs/submodules/snaps
@@ -1 +1 @@
-Subproject commit 84d902632f1dd77f891c49cfb1d58af5ae051d1a
+Subproject commit 1d3be6637bb78b514a0dfe32a34dbc7c93ea0611