Mosaic add, update, delete

[odinkomnogim]

Add mosaic: Unknown error window pops up, haven't been able to track the source of an error.

Update mosaic: There is information about the error, but I still can't track this detags argument and understand what's the problem:

mapflow-dev\dialogs\mosaic_dialog.py", line 58, in mosaic
return MosaicUpdateSchema(name = self.mosaicName.text(),
TypeError: __init__() got an unexpected keyword argument 'detags'