Pull request: Gelid Enderium Tools

This pull request is meant to add Gelid Enderium tools to Redstone Arsenal.
We added a pickaxe, an axe, a sword, a shovel, a battlewrench and a sickle.

All of these tools but the sickle have a special ability explained inside of their code. The sickle only stores more Energy and has a slightly bigger range.

Just as a note, it appears that dustCryotheum isn't registered in the oreDict, so we couldn't add our recipes correctly. Sorry about that :D