fix: review sov-ibc-transfer implementation and apply fixes (#133)

* fix: remove now redundant escrowed_token state + move away from base64-encoding memo

* chore: update basecoin rev

* imp: move away from memo + introduce minted_token_id_to_name state

* fix: enforce context to use ibc_transfer address as sender

* fix: apply review comments

* feat: add transfer_mintedTokenName RPC method

* chore: add comment for token_id map check in unescrow_coins_validate

* imp: add comments for create_token

* chore: clean-ups + comments

* nit

.cargo/config.toml

@@ -1,4 +1,3 @@
-
 [patch.crates-io]
 
 sov-ibc                     = { path = "modules/sov-ibc" }