Refactoring SketchNodes to PBDL

[x64Eddie]

In the input phase of the system, there are classes that are only for Sketch Files (e.g., SketchNode and Artboard). These classes are highly coupled with some of the services in the optimization phase.

There should be a higher level of abstraction for the design files, instead of what there is right now. This ease the process for supporting other design files and not just Sketch. This set of classes are called PBDL. They are a set of classes the puts together the similarities of design files, enabling the intake of multiple design files into Parabeac Core.

[x64Eddie]

#18