Add Consistency Groups API

This patch adds the /consistency-groups and /cgsnapshots
endpoints as well as AdminActions for both.

Partially implements bp manila-consistency-groups

APIImpact

Change-Id: I5fd0d3341766fdba4d92f4a43c3d1186e7a4b38e
diff --git a/manila_tempest_tests/config.py b/manila_tempest_tests/config.py
index f6962ea..ea1f678 100644
--- a/manila_tempest_tests/config.py
+++ b/manila_tempest_tests/config.py
@@ -36,7 +36,7 @@
                help="The minimum api microversion is configured to be the "
                     "value of the minimum microversion supported by Manila."),
     cfg.StrOpt("max_api_microversion",
-               default="1.4",
+               default="1.5",
                help="The maximum api microversion is configured to be the "
                     "value of the latest microversion supported by Manila."),
     cfg.StrOpt("region",