[Suggestion] Copy Current Field

**Short Description**
Add a command that copies the field you are looking at in JSON (Datapack) form.

**Why?**
This would not only make pack creation way less tideous, but would also encourage more people to make their own recipes using the mod.

**References**
A good example for this would be the `Recipe Creator` from [Extended Crafting](https://github.com/BlakeBr0/ExtendedCrafting)