GUI

[trpyn]

Let's make a GUI to:

• add new object
• change simulation parameters (forces, constants, blablabla....)
• change configurations values (keymap and stuff)
• add a display screen for objects, when selected opens a pop-up or side window to view its attributes and vectors and stuff (maybe even be able to change them or something)
• load / save / edit yaml ?
• add a rewind button to rewind time ?
• other ideas ?