Sketch Constraint Document Apply

Sketch shapes that are referred by constraints if changed on commit they will trigger automatically the solver. This also implied a code refactor that exposes which shapes are lively changed in document. Also, based on Sami's work that when you press Sketch button, the sketch shapes buttons are enabled, the code was made better both as quality and how behaves making it more consistent and easy to use. The Sketch Constraints button was moved to the Sketch Section so will be easily accessible to access shapes.