UI: support ldap vm permission tag

Add corresponding html and css to support vm permission.

Signed-off-by: Royce Lv <lvroyce@linux.vnet.ibm.com>
Change guest edit permission logic

Update api for ldap user query,
also adopt guest edit permission, validate user when change permission,
add notice icon to indicate invalid user input.

Signed-off-by: Royce Lv <lvroyce@linux.vnet.ibm.com>