UI:[Storage support]Add the png files for storage ui design

Add the png files for the icon of the storage volumes.

Add the png files for the arrow of list volumes.

Signed-off-by: zhoumeina <zhoumeina@oc5550100378.ibm.com>
UI:[Storage support]Add the po files of storage ui design

Add the po files of the trasnlation in the storage page.
Signed-off-by: zhoumeina <zhoumeina@oc5550100378.ibm.com>
UI:[Storage support]Add the css style of the storage page

drop the old css in storage.css, and add some new css which
the storage page needed.
Signed-off-by: zhoumeina <zhoumeina@oc5550100378.ibm.com>
UI:[Storage support]Add the js files of storage

1 Add the api interface of :
  List Storage pools
  List Storage volumes
  change the state of pools
  delete the storage pool
2 change the message function to allow null paramer

3 change the template function to support result:0
Signed-off-by: zhoumeina <zhoumeina@oc5550100378.ibm.com>
UI:[Storage support]Add the html of Storage support

Add the html files of the storage UI
Signed-off-by: zhoumeina <zhoumeina@oc5550100378.ibm.com>