Entire rework for sparkscript completely

[UserUNP]

I need to recreate this in a better way.
So there will be 2 separate packages: dfcore.js and sparkscript itself. dfcore.js is going to be imperative and sparkscript is going to be a bit declarative.

If there's any ideas on how sparkscript should be used please tell me

[UserUNP]

@RedVortexDev @SquaredStudios-MC @mavdotjs

[UserUNP]

@unitOrNull i forgot

goofy goober

[unitOrNull]

woo