Adds some description.
Completed work on TetrisGameL
Complete work on Tetrises L-P
Completed work on TetrisGameQ
Comleted work on Tetrises R-X
Merge branch 'master' into Tetris_modifications
Added Trominoes and Pentominoes in TetrisShape.
Renamed Tetraminoes to Figures.
Added functions to get random Polyominoes and SuperFigures.
Moved the code into the separate function setPieceFromType().
Code is aligned to changes in TetrisShape.
Added getNextTetraminoes(), getPrevTetraminoes()
Bugs fixed (replace getRandomShapeAndRotate() to getRandomTetrominoes())
fixed a misprint
Replaced getNextShape() to getNextTetraminoes()
Created PentixGame.
Fixed selection of PentixGame.
Created Pentux splash screen.
Created Pentix modification PentixGameZ
Some fixes
Added @SupressWarnings
Added @SupressWarnings
Improved balance, bugs fixed.