Rearrange and fix imports (broken through merge)Adjust some Types.Change LegoAssembly.clone() to use properties['label']

Fix Assembly property parameter options.

Removed properties from constructor. Changed parameter order. Made name optional. Added functionalities to accept datasheet dict and additional properties in form of dict type arguments and key-value arguments

Create first minimal draft for classes, createn, combination, datasheet and loading of json as dict or list.