Faster Deepslate

This mod makes deepslate mine as fast as its normal variant:

• Cobbled deepslate -> Cobblestone
• Cobbled deepslate stairs -> Cobblestone stairs
• Cobbled deepslate slab -> Cobblestone slab
• Cobbled deepslate wall -> Cobblestone wall
• Deepslate -> Stone
• Deepslate copper ore -> Copper ore
• Deepslate coal ore -> Coal ore
• Deepslate iron ore -> Iron ore
• Deepslate gold ore -> Gold ore
• Deepslate lapis ore -> Lapis ore
• Deepslate redstone ore -> Redstone ore
• Deepslate emerald ore -> Emerald ore
• Deepslate diamond ore -> Diamond ore