More Casting: Create a global API

[VictoriaSilver]

This PR adds a global API for manipulating banned items, casting substitutions, and the prototype types More Casting will attempt to create recipes for.

Using some Krastorio 2 items as an example;

MoreCasting.ban({
    -- Ban Krastorio items with their own casting recipes
    "kr-iron-beam",
    "kr-steel-beam",
    "kr-steel-gear-wheel",
    "kr-steel-pipe",
    "kr-steel-pipe-to-ground",
    -- Krastorio adds kr-iron-beam to the recipe, and only plain concrete is covered by MC's default bans
    "refined-concrete"
})

-- Allow these items to be substituted with molten iron
MoreCasting.add_castable_ingredients("moltenIron", {
    ["kr-iron-beam"] = 20,
    ["kr-steel-beam"] = 40,
    ["kr-steel-gear-wheel"] = 20,
    ["kr-steel-pipe"] = 20,
    ["kr-steel-pipe-to-ground"] = 300,
})

[LuziferSenpai]

Thanks for the PR, I did use it as a groundwork, but did my own implementation.