Test build of the mod for 1.12.2 (Patreon)

I’ve finally managed to create a functional though still experimental and in need of testing version of the mod for 1.12.2. I’ve also added an upgrade system somewhat reminiscent of progression mechanics in RPG mods, the currency used here is the lives of the creatures you’ve digested. This update applies to both the 1.7.2-1.7.10 and 1.12.2 versions, and I ask that you report any bugs immediately.

Naturally, there was a bug fix and some minor improvements.