Bishop Update

What's Changed

• New bishop powerup and bishop piece
• Cells now have colour
• Maps can be read from .csv files, currently only one map available - breakout
• Removed deletes and creates
• Powerups now show what they are before players capture them
• New powerup source cells that produce powerups randomly
• Double-Jump now called Hop to better represent it cannot land into a blank cell
• Dozens of tweaks and optimisations

Initial Release

This is the first release of dotto-cpp, which is essentially a direct port of the Python version of dotto into C++.
A few things may change in future releases:

• Introduction of the diagonal piece upgrade
• Non-random maps
• Powerups display what they contain instead of '?'
• Redesign of deletes/creates/destroyer