Codable support

We've changed row decoder to Swift.Decodable from QueryRowResultType. #69
And accepts Encodable type as query parameters.

Added:

• Querying with QueryParameterOption (actually TimeZone option)
• Custom data based type(like JSON, Protobuf) in blob/json column for decoding and encoding
  • Use QueryRowResultCustomData, QueryCustomDataParameter (see this tests.)

Removed:

• QueryRowResultType, Use Decodable type instead
• SQLEnumType, Use QueryRawRepresentableParameter or make conforming your enum to Encodable
• QueryParameterDictionaryType, Use Encodable type instead

Renamed:

• QueryDictionary -> QueryParameterDictionary
• QueryArray -> QueryParameterArray

(Thanks @florianreinhart, @patrick-zippenfenig )