Localization Support

Added basic localization support that can be used in the future to support multiple languages for Reliquary's naming. I put the creative tab name, all the block names, and a few item names in the English file to test. Works perfectly. While not allowing use of the Names library file, it will support languages other than English and increase organization of the XRBlock and XRItem classes. Just a little thing I wanted to do to help out. You most definitely do not have to merge this request if you want to keep using the language registry how you are currently.