moved scanner into separate folder since it combines controls and daq

alvra.py

@@ -1,7 +1,8 @@
 #!/usr/bin/env python
 
 from slic.controls import PV
-from slic.daq import BS, DIA, Scanner
+from slic.daq import BS, DIA
+from slic.scans import Scanner
 from slic.utils import Channels, Config, Elog, Screenshot
 from slic.checkers import PVChecker