refactor(nft): update query and nft.proto

Author: angelorc

proto/bitsong/nft/v1beta1/nft.proto

@@ -16,10 +16,10 @@ message Collection {
   string uri = 5;
 
   string creator = 6;
-  string minter = 7;
-  uint64 num_tokens = 8;
-  // bool is_mutable
-  // update_autority (who can update name, description and uri if is_mutable = true)
+  string minter = 7; // who can mint new nfts, if not set no one can mint
+  string authority = 8; // who can update name, description and uri, if not set no one can update
+
+  uint64 num_tokens = 9;
 }
 
 message Nft {
@@ -33,14 +33,14 @@ message Nft {
   string uri = 5;
 
   string owner = 6;
+  string authority = 7; // who can update name, description and uri, if not set no one can update
 
   // TODO: add max_editions
-  uint64 editions = 7; // number of printed editions
+  // uint64 max_editions = 8; // max number of printed editions, 0 means no limit
+  uint64 editions = 8; // number of printed editions
 
   // seller_fee_bps
   // payment_address
-  // bool is_mutable
-  // update_autority (who can update name, description and uri if is_mutable = true)
 }
 
 message Edition {

proto/bitsong/nft/v1beta1/query.proto

@@ -39,7 +39,6 @@ service Query {
 
   // Edition returns a specific edition of an nft
   // OwnerOfEdition returns the owner of a specific edition
-  // NumEditions returns the total number of editions
   // NftEditions returns all editions of a specific nft
   // AllNftEditionsByOwner returns all nft editions owned by the owner
 }