add non-generic version of FsPickler.DeclareSerializable()
add non-generic version of FsPickler.DeclareSerializable()

FsUnity/Unity3d.FsPickler,wallymathieu/FsPickler,mbraceproject/FsPickler,haraldsteinlechner/FsPickler,haraldsteinlechner/FsPickler,FsUnity/Unity3d.FsPickler,nessos/FsPickler,cloudRoutine/Unity3d.FsPickler,nessos/FsPickler,wallymathieu/FsPickler,cloudRoutine/Unity3d.FsPickler