UI: deep scan

V3 > V4 Fix issue that not able to close the create template window when not start a deep scan.
        Disable the button when it is "Please, wait...", if select it again the scan will stop.
        Move the position of search button when deep scan finds results.
V2 > V3 Modified according aline's suggestion
        - Always display a button "Search more ISOs" (when shallow scan has results) or "Search ISOs" (when shallow scan does not have results)
        - When this button is selected we warning user it will take long time "It will take long time. Do you want to continue?"
            - If so, we start deep scan and display a loading circle and message in the button ("Please, wait...")
            - When it is done: display the results or a message "No ISOs found"
            - if user gives up of deep scanning (close the window or manually entried a ISO) we need to stop getting the deep scan result (and maybe stop deep scan on backend too)
V1 > V2 Change "More" link to button.
        Omit "No iso found" message.

Add UI for deep scan.

Signed-off-by: Xin Ding <xinding@linux.vnet.ibm.com>