Logical Ender Dragon Distructions

Datapack expands vanilla's dragon_immune.json block tag, adding all of the end-originated blocks, because I though that made sense.

Now the dragon won't destroy these blocks:

• #minecraft:dragon_immune (vanilla)
• minecraft:end_stone_bricks
• minecraft:end_stone_brick_stairs
• minecraft:end_stone_brick_slab
• minecraft:end_stone_brick_wall
• minecraft:end_rod
• minecraft:ender_chest
• minecraft:purpur_block
• minecraft:purpur_pillar
• minecraft:purpur_slab
• minecraft:purpur_stairs
• waystones:end_stone_waystone (*if playing with Waystones mod)
• waystones:purpur_waystone (*if playing with Waystones mod)