SG4 Spec: Stargaze Minter Contracts

A minter must store the factory that created it, so it can query its parameters:

rs pub struct MinterConfig<T> { pub factory: Addr, pub collection_code_id: u64, pub extension: T, }

Custom minters can add more fields using extention.

A minimum, Stargaze minters should specify at least one Mint {} operation that takes 0 to many arguments.

rs pub enum ExecuteMsg { Mint {}, }