EPICS - Improve GUI layout
Zebra - split ZebraScannableMotor into ScannableMotor and
ZebraMotorInfoProvider

Move code from StopAndReset in atLineStart to allow stopAndReset to be
called multiple times by collection.
EPICs - allow prepareForCollection to be called multiple times per scan

To allow the saem detector to be use in different child scans of
MultiScan