[Bug]: rpc DenomMetadata can't support slash

[JoowonYun]

Is there an existing issue for this?

• I have searched the existing issues

What happened?

We're having trouble querying denoms that contain slashes, like ibc or tokenfactory.

#16852

Cosmos SDK Version

0.47, 0.50, main

How to reproduce?

curl -X GET "http://localhost:1317/cosmos/bank/v1beta1/denoms_metadata/ibc%2Fabc"

Result

{
  "code": 12,
  "message": "Not Implemented",
  "details": []
}

[julienrbrt]

Hey! This is why the DenomMetadataByQueryString exists, however you PR is a good solution as well.
We should do that for all endpoints, but still keep the ByQueryString services.