adding end_scan tasks in the base class

[decarlof]

will it make sense to move these end_scan() tasks

        # Set the rotation speed to maximum
        self.epics_pvs['RotationSpeed'].put(self.max_rotation_speed)
        # Move the sample in.  Could be out if scan was aborted while taking flat fields
        self.move_sample_in()
        if self.return_rotation == 'Yes':
        # Reset rotation position by mod 360, the actual return 
        # to start position is handled by super().end_scan()
            current_angle = self.epics_pvs['Rotation'].get() %360
            self.epics_pvs['RotationSet'].put('Set', wait=True)
            self.epics_pvs['Rotation'].put(current_angle, wait=True)
            self.epics_pvs['RotationSet'].put('Use', wait=True)

from 2-BM to the base class?