Added smelting and blasting of raw metal blocks.

Made powered rail crafted with gold give 16 rails.
Made powered rail crafted with copper give 8 rails.

Added recipes to change rails into detector and activator rails.

Crusher [pickaxe]

• Crushes blocks into their 'crushed' version
• Cobblestone -> Gravel
• (Red) Sandstone -> (Red) Sand
• Concrete -> Concrete Powder
• Fortune increase the amount of drops (with gravel and sand)
• Can not be combined with Silk Touch

Drilling [pickaxe, shovel]

• Increases depth per level, up to level 3
• Mine deeper when mining compatible blocks with similar hardness
• Can be gotten in an enchanting table from level 8, with +8 per level
• Can not be combined with Excavation
• Can be canceled by sneaking

Excavation [pickaxe, shovel]

• Mine a 3x3 area when mining compatible blocks with similar hardness
• Can be gotten in an enchanting table from level 30
• Can not be combined with Drilling
• Can be canceled by sneaking

Lumber [axe]

• Chop down a whole tree by mining the bottom block
• Can be gotten in an enchanting table from level 15
• The bottom must be a single block. For a 2x2 tree, first mine the 3 other blocks
• Can be canceled by sneaking

Shulkers drop a higher amount of shells.
With a minimum of 2 and a max of 3, shulker boxes are way easier and quicker to get.