Solver Re-integration

What:

Solver reintegrated into RubiksCubeSolver VSproject
- initCube method added
- updatePreviousMoveIndexes method added

Robot method added to execute set of moves once the cube has been
solved.
Changed location of brush button panel to more central location on the
gui.

Where:

Solver re-integrated in Solver.cs
Robot method added in Robot.cs
Brush button panel moved in Form1.Designer.cs line 139