Tharify package for Keen 3

The PCKF community is continuing its relatively new tradition of minimalistic community level packs. Levels are very constrained in what tiles they may use, making design/gameplay the focus as opposed to aesthetics. The first time this kind of pack was done, some people had technical issues with the usual Vorticons editors, so I whipped up a development environment based on Abiathar and Tharify. Abiathar is an unusual choice for this application because it's a Galaxy editor - I only suggested it as a last resort if no Vorticons editor would run - but apparently it worked well for people, and they requested a Keen 3 setup for this pack. So yesterday I put it together. It was a fairly simple matter of tweaking the Tharify-invoking batch file to work on Keen 3 and once again placing all allowed tiles in the level for people's convenience.