Changelog for wumpus-drawing-0.3.0

0.1.0: * Initial release - this is a split from @Wumpus-Basic@ making the (very prototypical - read sub-alpha, unstable...) modules in the @Drawing@ hierarchy a separate package. * Simplified Chains - chains are now regular lists (though often infinite). Drawings are made with chains using new zip-like functions. * Re-worked Shapes. * Re-worked Arrow and Arrow Tip types. * Re-worked ConnectorPaths.