Add support for preserving type info throughout serialization/deserialization process

[danne931]

Expected behavior
I should be able to use a custom serializer defined with SerializerWithStringManifest or Serializer when IncludeManifest = true and have the appropriate type info passed into FromBinary.

Actual behavior
If using a custom serializer defined with Serializer when IncludeManifest = true, the manifest type passed into FromBinary is not correct.
If using a custom serializer defined with SerializerWithStringManifest, the manifest type string provided in my custom serializer's Manifest method is not passed into the manifest parameter of FromBinary.

Additional context
I am using F# so fixing this so I can define a custom serializer to serialize/deserialize messages with a 3rd party library would be quite helpful.

[danne931]

Potential fix:
#335