Simple Ore Scanner

This adds a very simple item called "simple ore scanner". You make it from 3 sticks and 2 bones. It looks like a wand, and when you use it, it scans the nearby area for ores (it pops up a message, maybe when I'll get some more experience with modding, I'll change it to shaking animation). The default search range is a box of 9x9x4 directly under the player. Also you can change in config the area to scan. This thing is meant to be used with mods changing ore spawning (CustomOreGen) so it would be easier to find ores. It is my first mod, so it's crude and simple.