GraphicComActive: Fixed bug in findClosestPin()
Added Tool abstract class
Selector: Renamed to ToolSelector
Line2: Added another constructor
GraphicPinMapping: Now defines pins in terms of Line2
Removed redundant class
GraphicsComActive: Modified findClosestPin to account for line
GraphicComActive: findClosestPin now uses distanceSqr
Line2: closestPoint() now always returns a new Vec2
GraphicsGen: For pins, now generates lines instead of points
EditorPanel: Updated debug code to match new functionality
GraphicsComActive: Fixed threshold value not being squared
EditorStyle: Renamed methods
GraphicGen: Removed todo