snbt/nbt (like) decoder/decoder

data that follows snbt/nbt standard can be parsed by this package,
however, data can be handled by this package may not be a a valid snbt string / data,
e.g. [123, abc] is illegal snbt string (snbt requires all element in list have same type, you can enable it a decode.go, line 125)

data mapping (especially list/slice/array):

	tagByte -> int8
	tagShort -> int16
	tagInt -> int32
	tagLong -> int64
	tagFloat -> int32
	tagDouble -> int64
	tagByteArray -> []int8
	tagString -> string
	tagList -> []any
	tagCompound -> map[string]any
	tagIntArray -> []int32
	tagLongArray -> []int64

other types can use caster/mapping (e.g. caster.DefaultCaster/ caster.MapNBT) to convert

there are some magic code (e.g. tokens/number/core) generated by gen_code using package fa (https://github.com/OmineDev/fa)