Binary Encoding - Optimize Internal Types Detection Logic

[kundadebdatta]

Acceptance Criteria:

Identify internal types from namespace/assembly or similar. Or finding a way to at least fail tests - for example have a Dictionary somewhere that has to contain all internal types (Assembly + Namespace) and a flag whether it is supposed to be considered internal - than we could have a unit tests reflecting over types and checking whether they are listed in that dictionary - that way we could identify if a new type has been added that has not been marked as internal (or not)