Alpha 2 is out fixing bugs and adding new ruleset

Changelog:

• Added full 256 asymmetric template, example usage in this awesome video by Echo
• Fixed bugs seen in the video, namely incorrect program behavior with input and output tile sizes, now on first tile load input tile size is height by height, output is the same (no resize). If you change the size, it saves to tile file.
• Fixed error messages in Godot exporter.
• Fixed several visual bugs and improved a couple of things.