updated MVC and icon etc

src/.DS_Store

src/LICENSE

src/README.md

src/_DS_Store

src/__pycache__/block.cpython-37.pyc

src/__pycache__/block.cpython-38.pyc

src/__pycache__/game.cpython-37.pyc

src/__pycache__/game.cpython-38.pyc

src/__pycache__/mechanism.cpython-37.pyc

src/__pycache__/mechanism.cpython-38.pyc

src/__pycache__/view.cpython-37.pyc

src/__pycache__/view.cpython-38.pyc

src/__pycache__/world.cpython-37.pyc

src/__pycache__/world.cpython-38.pyc

src/_gitkeep

src/bgmusic.wav

src/block.py

src/build.wav

src/destroy.wav

src/game.py