some old items and blocks

some old items and blocks adds some items and blocks removed from minecraft, the first block is the nether reactor core, which when right clicking gives you netherrack. The second block is the crying obsidian that when right-clicking saves the spawn point (Note: it doesn't work on the nether nor does it work on the end). the third block is a dead bush, but green spawns in biomes where there is grass. the only item is a horse mount that has no function