Add a variant of Snow Golem (Ice Golem) which makes use of Ice Balls

To date, the Snow Golem has fallen far behind in functionality compared to the other Golems (The Copper Golem organizes objects and the Iron Golem fights melee against mobs that are a danger in the villages). But it must also be taken into account that the Snow Golem still has its use for builders and redstoners.
So I propose to implement a new variant of the Snow Golem, which is called "Ice Golem". It would be created by using a pumpkin block, a snow block and finally a Packed Ice block (To prevent the golem from suffering damage in warm biomes of the Overworld). The behavior of the Ice Golem would be the same as the Snow Golem with the difference that: It does not leave snow when moving, it shoots Ice Balls slowly (Each shot taking 2 to 5 seconds) and it can only heal if you feed it with Ice Balls.