CodablePrimitives; Allows for easier handling of types for custom en/de-coders in certain situations

CodablePrimitive.swift

protocol CodablePrimitive { }

extension String: CodablePrimitive { }
extension Bool: CodablePrimitive { }
extension Double: CodablePrimitive { }
extension Float: CodablePrimitive { }
extension Int: CodablePrimitive { }
extension Int8: CodablePrimitive { }
extension Int16: CodablePrimitive { }
extension Int32: CodablePrimitive { }
extension Int64: CodablePrimitive { }
extension UInt: CodablePrimitive { }
extension UInt8: CodablePrimitive { }
extension UInt16: CodablePrimitive { }
extension UInt32: CodablePrimitive { }
extension UInt64: CodablePrimitive { }