StoneCraft

A few changes that makes stone more useful!

Added 4 new stone;

 - Food stone: Gives you a cake... but is it a lie?

 - Wither stone: Gives you 3 wither skeleton heads and helps you to spawn wither!

 - Ender stone: Gives you 2 eyes of ender and 2 obsidian blocks. Closer to make an ender chest!

 - Hunger stone: Gives you hunger effect and some instant damage :(

Added new craftings;

 - Bedrock is craftable with obsidian and block of coal.

 - If you heat an obsidian, you'll get obsidian! Wow!

 - If you craft combat with lightning stone, you will get enchanted tools!

Changes;

 - The possiblity of finding Stone Dungeon is reduced.

 - Super gold ore gives 8 gold ingots instead of 16.

 - Balanced the rarity of ores.