Will move farmDto.AddXXX to FarmCollectionsService
Moved collection manipulation methods from farmDto into FarmCollectionsHelper
Comitting app.js
Updated app.js.
FarmService needs to clone and update the lots and groves in farmDto
Made FarmCollectionsHelper ctor(FarmDto, Farm)
Changed FarmCollectionsHelper to extensions off IFarm, allowing us to AddLots etc to Farm or FarmDto