Supreme Mining dimension

Added Creative Tab for Structure placing Objects Spawn Eggs for Miner Brothers Ruined Etched Portal placement block Ruined Nether Isles Portal placement block Nether Isles Ruined Portal loot table

Changed Nether Isles Portal frame block Solid Amber Loot Table to include possibility for shadeblight items Mining Outpost (and parts) creative tab Titanium ingot creative tab Underground dimension Height to -64 through 256 (1.20.1 fix: nether isles igniter)