Auto binding Protobuf rpc and native classes exposing a soap interface with mex

Protobuf Binding:

• Repeated Fields
• Enums
• Message Fields
• Inherited Messages
• Extensions

Native Bindings:

• Server invoke
• Enums
• Class Fields
• Inherited Classes
• pod other than double

Threading:

• Implement sain thread model (i.e. all message callbacks on same thread)
• Split response into callback as not to block thread