Consider adding protocols for root class serialization&deserialization

[Joakim Hassila]

To allow generic handling of Flatbuffers compatible entities regardless of which root class they belong to, something like:

public protocol FlatBufferDeserializable {
    static func fromByteArray(data : UnsafeBufferPointer<UInt8>, config : BinaryReadConfig) -> Self
    static func fromRawMemory(data : UnsafeMutablePointer<UInt8>, count : Int, config : BinaryReadConfig) -> Self
    static func fromFlatBufferReader(flatBufferReader : FlatBufferReader) -> Self
}

public protocol FlatBuffersSerializable {
    func toByteArray (config : BinaryBuildConfig) -> [UInt8]
    func toFlatBufferBuilder (builder : FlatBufferBuilder) -> Void

}

public protocol FlatBuffersCompatible : FlatBuffersSerializable, FlatBufferDeserializable {}

And having the root class (ContactList, FoobarContainer, ...) adopt FlatBuffersCompatible with

public extension FooBarContainer : FlatBuffersCompatible {}

The protocols might be tweaked as the API evolves a bit, but that would be the general idea.

To make it truly useful, it might need a dynamic reflection API - have you thought anything about that?

Thoughts?