Adding custom thruster fuels

Custom fuels are supported only in 0.2.0 and later versions!

1. Create a data pack
2. Add data/createpropulsion/thruster_fuels directory
3. Add a json file for your fuel (for example turpentine.json) that looks like this:

{
    "fluid": "createpropulsion:turpentine",
    "thrust_multiplier": 1.0,
    "consumption_multiplier": 1.0
}