Derives for high performance JSON serialisation (and eventually deserialisation).
Attributres are supported for both
#[simd_json(...)] and for compatibilty also for
#[serde(...)] and follow the same nameing conventions as serde.
rename = "new_name"- renames a field
rename_all = "camelCase"- renames all (not otherwise renamed) based on the rule,
camelCaseis currently supportd