removed tool from floom.system
removed floom.tool in favour of reuseable tool utility class
removed global env
removed update method in viewport
moved visualization files to their appropriate folder
moved input to the appropriate folder
ease tool definition
removed server.py
renamed index.html
removed simulator
extracted datGui from floom
inversion of control from system to renderer
inversion of control from grid to renderer
inversion of control from aabb to renderer
inversion of control from spring to renderer
inversion of control from particle to renderer
inversion of control from obstacle to renderer
allow multiple circular obstacles
added doSprings and drawSprings flags