v2.0 Beta2

Changelog

Second (and hopefully final) beta release for Dracula v2. This release restructures the source files and introduces my first real foray into scripting to assist end-pack generation. But mostly the update just fixes some, admittedly rather silly, errors in the last beta:

Fix new and old creative tab layouts getting mixed up.
Add most 1.20.2 textures
(hopefully) fix issues #8, #9, #10 and #11
Restructure source files and add a generation script
Improve vector asset consistency. This will be furthered on in the full release, along with templates for easy contributing.