Fix decoder path and add transfer commands

the file path to the decoder is better resolved
with the module path.

share transfer commands exist in the manila
shell, it'll be helpful to show the OSC translations
to these as well.

Implements: bp/openstack-client-support
Change-Id: I85d7ebd5c5c34c95402c0ea95f358bef91d26657

manilaclient/osc/v2/data/manila.csv

@@ -115,6 +115,11 @@ share-server-reset-state,share server set --status,Explicitly update the state o
 share-server-reset-task-state,share server set --task-state,Explicitly update the task state of a share
 share-server-show,share server show,Show share server info
 share-server-unmanage,share server abandon,Unmanage share server
+share-transfer-accept,share transfer accept,Accepts a share transfer.
+share-transfer-create,share transfer create,Creates a share transfer.
+share-transfer-delete,share transfer delete,Remove one or more transfers
+share-transfer-list,share transfer list,Lists all transfers
+share-transfer-show,share transfer show,Delete a transfer
 show,share show,Show details about a NAS share
 shrink,share resize,Decreases the size of an existing share
 snapshot-access-allow,share snapshot access create,Allow read only access to a snapshot

manilaclient/shell.py

@@ -610,8 +610,9 @@ class OpenStackManilaShell(object):
             osprofiler_profiler.init(options.profile)
 
         try:
-            decoder_path = os.path.abspath(
-                'manilaclient/osc/v2/data/manila.csv'
+            decoder_path = (
+                '%s/%s' % (os.path.dirname(os.path.abspath(__file__)),
+                           'osc/v2/data/manila.csv')
             )
             with open(decoder_path) as f:
                 decoder_data = {