Allow mapping case class fields with different names when converting to/from JSON

import com.couchbase.client.scala.implicits.Codec

import com.github.plokhotnyuk.jsoniter_scala.macros.CodecMakerConfig

case class User(name: String, age: Int, addresses: Seq[Address])

object User {

  implicit val codec: Codec[User] = Codec.codec[User](

    CodecMakerConfig.withFieldNameMapper(

      Map("name" -> "n", "age" -> "a", "addresses" -> "s")

    )

  )

}