A new 1v1 mode, update to maze generation algorythm, color change etc.

- Changed the Fog color to burgundry(red'ish) from grey

This should increase the visibility of discovered and undiscovered parts of maze, while simultaneously not being a distracting color, which, hopefuly, helps the gameplay feel more intuitive. 

- Added a new Fog of War 1v1 mode, which lets you play with a friend localy. The mazes are same but mirrored, with a green area marking the finishing point

As a person who likes to play and compete with others, it brings me great joy to have 1v1s in different games, so it was a pretty obvious choice to add this small but, in my opinion, fun mode to the game to ensure you can not only play a few rounds of different mazes on your own, but also bring a friend for competition. Perhaps, later I could add a 1v1v1v1 mode

- Twisted a little maze generation algorythm, optimized the game further

With a little change to maze generation algorythm and optimization, I hope that the game and it's background menu would work for everybody and create more intuitive mazes