Assemble

- Switched to slot serializer system instead of manual serialization - Changed ingredient stack consumption to default to 1

- Renamed TestAssemble to AssembleTest - Bumped Nucleus version

- Change GradualAssembly to check whether gradual slots match before crafting

- Add GradualEnergyOutput (used for energy production assemblies) - Change ItemStorageOutput#matches to check if the slot is empty before returning false

- Allow TInventory combined storage types to accept subclasses of SingleSlotStorage

- Changed usage of TStack to Stack<T>

- Changed usage of `Pair<T, Int>` to `TStack` - Changed GradualAssemblies to use Gradual(Input | Output)Slots instead of hardcoded values used in `consume()`

- Changed *Inventory interfaces to use Storages instead of methods like `getFluid(slot: Int): FluidVariant` - Refactored package structure to avoid duplicate…

- Change ItemOutputSlot to increment stacks rather than overriding.

- Added core assembly logic