Allow serializers for a generic type

[msdvoits]

I need serialization of generic types.

Let I have a generic type:

type T<'a>(a: 'a) =
   member x.A = a

I want to serialize instances of this type T(10), T("abc") and would create a serializer type as follows:

let TSerializer<'a>() =
  interface ISerializer<'a> with
    member x.TypeId = "T"
    member x.Serialize _ t -> ...
    member x.Deserializer _ is -> ...

Now only non-generic serializers can be registered in a serializer library. But still it seems possible to do the following, if a serializer type has same order and number of type parameters as its target type:

lib.Register(typedefof<TSerializer<_>>)