color picking!

i noticed that setting color in the inspector with 3 rgb values was really annoying, so i made a whole new ui class (ui_color_picker.hpp/cpp), that can hook into any other ui

 
it supports:
 

• S/B box + hue bar
• RGB input
• CMYK input (mildly broken)
• hex input (very broken)

 
it actually works pretty well, there is some bug where an object can never be fully white but i think thats a command issue not color picker or inspector

 
next, it might be time to work on physics