Fill the creationMonitors based on priority

If not priotity, append to the end of the list.

Signed-off-by: Laszlo Hornyak <laszlo.hornyak@gmail.com>
CLOUDSTACK-999: hyper-V: UI > Infrastructure > Secondary Storages > Add Secondary Storage > When provider is SMB, show SMB username/password/domain fields and send their value to url parameter of addImageStore API.