Advent Calendar

This update should (hopefully) fix all of the annoying inconsistencies with player head rendering between different versions of spigot and paper.

This update also adds support for PlaceholderAPI placeholders for commands only. Placeholder API is not required, so if you don't want to use it you don't have to!

I also added the ability to claim items without the GUI closing by Right Clicking them instead of Left Clicking. This should hopefully make it a bit easier for testing out all of the gifts in the preview calendar.

If you encounter any bugs or have any suggestions, please join my development discord https://discord.gg/GMkjWd2Kun. As this plugin is free, if you would like to contribute, please consider buying me a coffee. I am open to any and all feedback! Happy Holidays and thank you for using my plugin!