happy-hour-0.0.0.1: Generate simple okay-looking bar plots without much effort

 :: FilePath Where the file will be written. The containing directory must already exist. If there already exists a file at this path, it will be overwritten. If there exists a directory at this path, the action will fail. -> [(String, Int)] The data to visualize. Each list entry represents a bar on the plot, ordered from left to right. The String is the label on the X axis, and the Int is the height of the bar. -> IO ()