Closes-Bug: #1391665
Add support to show monitor down count in the storage infra dashboard
Issue:
    1. display the down monitor count along with the active monitor count in infobox
    2. incorrect calculation of the monitor only node
Fix:
    1. when monitor node goes down, infobox will have a down count with down arrow in solid red.
    2. on mouse hover tooltip will show message - check alerts for more info.
    3. number of monitor only node will be calculated from total active monitor - storage hosts with monitor property.
    4. new style sheets added for infra commom resources.
Test:
    1. checked with downCnt value set and verified in UI

Change-Id: I85cb3763c31a19cf07bdb6d4c8000abf6143f45e
Merge "Closes-Bug: #1391665 Add support to show monitor down count in the storage infra dashboard Issue:     1. display the down monitor count along with the active monitor count in infobox     2. incorrect calculation of the monitor only node Fix:     1. when monitor node goes down, infobox will have a down count with down arrow in solid red.     2. on mouse hover tooltip will show message - check alerts for more info.     3. number of monitor only node will be calculated from total active monitor - storage hosts with monitor property.     4. new style sheets added for infra commom resources. Test:     1. checked with downCnt value set and verified in UI"