Changes:
- Added extensive gui methods
- There is a main gui which will contain icons for each of the armor sets, when the player clicks on one of these they will be taken to the next gui page containing the armor for that set
- Everything about the gui can be customized (name, items, item lore, size etc.), the gui also supports up to 54 armor sets.
- I created new config files, there are no changes to the existing files.

Fixes:
- Changed some methods for code clean-up

Updated Dependencies:
- With the new gui you will now have to have vault running on your server in order to buy the armor sets from the gui