plugins:patch is now admin only operation

and also enabling all important plugins by default. there
is no longer sense to keep them outside of enabled stuff.

Change-Id: I98354232a467d72b8a3713697dac5c76db081862
bp: plugin-management-api

etc/sahara/policy.json

@@ -25,6 +25,7 @@
     "data-processing:plugins:get": "",
     "data-processing:plugins:get_version": "",
     "data-processing:plugins:convert_config": "",
+    "data-processing:plugins:patch": "role:admin",
 
     "data-processing:images:get_all": "",
     "data-processing:images:get": "",

sahara/plugins/opts.py

@@ -17,7 +17,7 @@ from oslo_config import cfg
 
 opts = [
     cfg.ListOpt('plugins',
-                default=['vanilla', 'spark', 'cdh', 'ambari'],
+                default=['vanilla', 'spark', 'cdh', 'ambari', 'storm', 'mapr'],
                 help='List of plugins to be loaded. Sahara preserves the '
                      'order of the list when returning it.'),
 ]