operatorAssignedTo attribute collapsed to operator. checkIfResourceIsAvailable of OperatorPreemptive removed as redundant

OperatorPool will check if any operator can preempt when there no operators available. checkIfResourceCanPreempt added to OperatorPool. checkIfResourceCanPreempt of OperatorPreemptive preemts the currentStation if there is such need

additional control before preemption. The object must be Up before any attempt for preemption is performed

new method checkIfResourceCanPreempt added to objectResource. The method will check weather the object currently occupying the resource can be preempted and if there is need will eventually preempt the object.

CoreObject getEntity now checks if the receiver is operated before performing the preemption. In that case the preemption must be performed by the operator

test 66 added and its dump. It outputs wip stats for one Queue. ATTENTION, the test 63 problem is fixed in GeorgeReturnLists branch

Queue and main script updated so that the Queue can read if it should output wip stats and if yes to output it

Widgets will use this information instead of reading spreadsheet data

{'success': True, 'data': data}