DEV: False serialization

[LimpidCrypto]

Currently all struct fields for transaction and request models are serialized from sake_case to PascalCase. This is a problem because fields like flags for transactions and account for requests both need to be lowercase, but when serializing they get renamed to Flags and Account, which is invalid. I tried using #[serde(rename = "flags")], but #[serde(rename_all(serialize = "PascalCase", deserialize = "snake_case"))] seems to have a higher priority. It is possible to build custom Serialize implementations, but I could not figure out a good way to do it, yet.

[LimpidCrypto]

I think I got a little bit mixed up how serialization works here. Serialization works fine :)