Add soul soil recipe

[svr333]

Description

Add soul soil as a valid input item for nether gold pan and variants.
I had to refactor quite a bit, because it was designed for one item as input only

Proposed changes

Add soul soil as a valid input block for the nether gold pan, automated panning machine and electric panning machine.

Related Issues (if applicable)

Discord approved suggestion 1614

Checklist

• [x] I have fully tested the proposed changes and promise that they will not break everything into chaos.
• [x] I have also tested the proposed changes in combination with various popular addons and can confirm my changes do not break them.
• [x] I followed the existing code standards and didn't mess up the formatting.
• [x] I did my best to add documentation to any public classes or methods I added.
• [x] I have added Nonnull and Nullable annotations to my methods to indicate their behaviour for null values
• [ ] I added sufficient Unit Tests to cover my code.