Module serializers

Helper methods used for shaping the JSON (and other Serde) formats derived from the protos. TODO: Extract the Bech32 prefixes into a module at the root of the crate, and then remove this module entirely. We don’t want to be custom-shaping serde formats, we want to have those match protobuf JSON exactly.

Modules

• bech32str
  Bech32 serializers. Because Bech32 is parameterized by the HRP, this module implements (internal) helper functions that are used in submodules that fill in parameters for various key types.