Add iron golem spawn egg

[TheGallium]

Referring to issue #108

[Fusezion]

I'm not sure how I feel about making iron optional. as snow golem also exists and if we're missing iron we're likely missing that one

*and let's not talk about spawn (entity) even being valid across spawn eggs, this is just innately wrong

[sovdeeth]

I'm not sure how I feel about making iron optional. as snow golem also exists and if we're missing iron we're likely missing that one

*and let's not talk about spawn (entity) even being valid across spawn eggs, this is just innately wrong

good catch with the iron thing as far as the second point, i agree, but for a different pr.

[TheGallium]

The minecraft:iron_golem_spawn_egg item was added in 1.19.3, using it in 1.19 will not work. Also, for the making iron optional, I think golem should be the default but for the snow golem, snow would be required.

[sovdeeth]

I would prefer both be required. It's better to be explicit about thing to avoid confusion and future conflicts.

[aabssmc]

what about ender dragon & wither spawn eggs

[APickledWalrus]

Thanks for this!