Implement ICS-721 NFT transfer (#1020)

* WIP: add types and contexts

* WIP: add events

* WIP: implement modules

* add send_transfer

* add recv and refund handlers

* add tests

* fix send and recv

* fix context and add tests

* fix fmt

* fix for CI

* fix messages and serde

* fix comments

Cargo.toml

@@ -75,6 +75,7 @@ ibc-core-handler      = { version = "0.49.1", path = "./ibc-core/ics25-handler",
 ibc-core-router       = { version = "0.49.1", path = "./ibc-core/ics26-routing", default-features = false }
 ibc-client-tendermint = { version = "0.49.1", path = "./ibc-clients/ics07-tendermint", default-features = false }
 ibc-app-transfer      = { version = "0.49.1", path = "./ibc-apps/ics20-transfer", default-features = false }
+ibc-app-nft-transfer  = { version = "0.49.1", path = "./ibc-apps/ics721-nft-transfer", default-features = false }
 
 ibc-core-client-context     = { version = "0.49.1", path = "./ibc-core/ics02-client/context", default-features = false }
 ibc-core-client-types       = { version = "0.49.1", path = "./ibc-core/ics02-client/types", default-features = false }
@@ -87,8 +88,10 @@ ibc-core-handler-types      = { version = "0.49.1", path = "./ibc-core/ics25-han
 ibc-core-router-types       = { version = "0.49.1", path = "./ibc-core/ics26-routing/types", default-features = false }
 ibc-client-tendermint-types = { version = "0.49.1", path = "./ibc-clients/ics07-tendermint/types", default-features = false }
 ibc-app-transfer-types      = { version = "0.49.1", path = "./ibc-apps/ics20-transfer/types", default-features = false }
+ibc-app-nft-transfer-types  = { version = "0.49.1", path = "./ibc-apps/ics721-nft-transfer/types", default-features = false }
 
-ibc-proto = { version = "0.39.1", default-features = false }
+#ibc-proto = { version = "0.39.1", default-features = false }
+ibc-proto = { git = "https://github.com/heliaxdev/ibc-proto-rs", branch = "yuji/feat/ics721-impl", default-features = false }
 
 # cosmos dependencies
 tendermint                       = { version = "0.34.0", default-features = false }