Entire Math Geometry Solver features demo

Important note: Architecture to define Geometry topology "in written", as flexible as possible, with simple API, but supporting as many Geometry features as possible is the goal. Visualization is not a goal and not the focus of this activity at all. Features demonstrated simplicity, yet accuracy in: Geometry topology description; Geometry elements reuse (a side of one figure can be a side for another); Automatic calculation, including symbolic calculations (well, in some tasks Pi should be Pi, not 3.14....); Variety of figures; Dimensions support.