New Layer control dialog:
1. bitmap next to the Volume (non-ROI) item indicates the ViewFilter Color Map presently associated with the corresponding layer.
2. Active Layer name and its dimensions are now displayed in dialog title.
New Layer Control dialog: fixed so the ViewFilter changes are reflected immediately both in dialog and the document is refreshed correspondingly.
New Layer Control dialog: fixed the Check box issue so the scene immediately reflects the state of the checkbox.
