Move Share Migration code to Data Service

Removed functionality of Share Migration relying on Manila Share
Service node, moved code to Data Service node for copy phase.

Added parameter 'notify' and share/api methods for future
implementation (see dependent patches).

Added new copy operation statuses, in order to implement future
API calls to obtain progress and cancel migration.

Added possibility of 2-phase migration for driver migration and
generic (fallback) migration.

Added admin export location support and removed approach of
replacing IP with config parameter.

Added Admin-only API entry points to:
- Migration Cancel (only during copying)
- Reset Task State field
- Migration Get Progress (only during copying)
- Migration Complete (2nd phase migration)
- Notify parameter on Migrate Share

APIImpact
DocImpact

Implements: blueprint data-service-migration
Change-Id: I1d65aac2f36942cd70eb214be561d59a15a4ba26
diff --git a/manila_tempest_tests/config.py b/manila_tempest_tests/config.py
index 10da4cb..5d935c2 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="2.14",
+               default="2.15",
                help="The maximum api microversion is configured to be the "
                     "value of the latest microversion supported by Manila."),
     cfg.StrOpt("region",
@@ -183,7 +183,7 @@
                default="100",
                help="Flavor used for client vm in scenario tests."),
     cfg.IntOpt("migration_timeout",
-               default=1200,
+               default=1500,
                help="Time to wait for share migration before "
                     "timing out (seconds)."),
     cfg.StrOpt("default_share_type_name",