made the data a 'var' instead of a 'val'
now putting the result of 'filter()' in a DoubleLinkedList[Vec2D] instead of an ArrayBuffer[Vec2D]
Added new constructor and added sub and add methods
changed the "isAlmostEqual" methods
Added "intersects" and "intersectLine" tests
added more intersection tests
Added cutSlice method
first commit
triangulation edges are now (where possible) parallel with the corresponding circumference edge
Added middlePoint
some tests for AABB2D class
Added some intersection tests
testing middlePoint
Added 'makeSimple'
added methods 'toClockwise' and 'intersections'
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