Add new mobs to transformation powder

[Sleepy-Horse]

Add #2133:
Carminite Golem <---> Iron Golem
Stable Ice Core <---> Snow Golem
Squirrel <---> Fox
Hedge Spider <---> Spider
Carminite Broodling <---> Cave Spider

[GizmoTheMoonPig]

There's a few things I want to address here.

I don't agree with the idea of the golem transformations as it allows you to pacify otherwise hostile mobs. Not a great design idea.

I dont think transformation powder supports chance-based transformations (such as cave spiders turning into either broodlings or swarm spiders) and will just pick whatever is first on the map. In order to support that a bit of rewriting of the data map will be needed. I dont expect you to do this nor do I know if its something I really want to happen so it can be skipped for now.

You also added the hedge spider -> spider transform to datagen again despite it already existing on line 131

[AriaElidove]

"as it allows you to pacify otherwise hostile mobs."
This already happens by turning hostile wolves into regular wolves, as well as minotaurs into zombified piglins.

I do agree that maybe the Snow Golem <> Stable Ice Core is potentially a bad design, but keep in mind that not every player just carries transformation powder in their back pocket when playing the twilight forest. If anything, this provides a stronger purpose to obtain this powder

[AriaElidove]

Seeing as #2133 was closed and listed as not planned, this may also need to be closed.