Fix bug in 'clues'

When the line is compressed the regions of the first and last clues
do not update, so the unique range calculation was not currect and caused
numerous errors to accur.
Update gitignore file
When done solving, display the result without dots
Add debug messeges when using brute force
Add a bunch of new puzzles and assets
Add new small project that converts B&W pixel images to clue puzzle data
Updated the sfml libraries
Fix compile configuration errors