HeadsPlus

Fixed an API issue that popped up in the update after an internal library was updated (which is used for managing the configuration files). This is largely a hotfix and has been confirmed to work on 1.15-1.20, a more permanent solution is being sought after. Please let me know if there are any behavioural issues with config files.

(Also added new mob heads :D)

In light of concerns about Fractureiser, I have made scans on my PC to ensure and avoid infection from the malware, which is not present on my machine. The SHA256 hash of the compiled build is D220CA3B19276A251FBFCA04459238000D214ED689A1B72064D088B232CAEB23. If the plugin starts behaving strangely, please confirm the hashes match up, and if you have any concerns about this, DM me on Spigot or open a ticket on Discord.