(feature) Codec for Dolphin Platform to read and write messages.

[hastebrot]

sealed class DolphinCommand {
    class CreateContext() : DolphinCommand()
    class DestroyContext() : DolphinCommand()

    class CreatePresentationModel() : DolphinCommand()
    class DeletePresentationModel() : DolphinCommand()

    class CreateController() : DolphinCommand()
    class DestroyController() : DolphinCommand()

    class ValueChanged() : DolphinCommand()
    class CallAction() : DolphinCommand()
}