reverted to full protobuf-net + build & test fixes
add license header, tests corrections
struct serialization, implicit fields changes, unity aot reflection GetValue for properties fix, default implementation resolve event, reference replaced is allowed when deserializing on existing object, constructor not found - workaround
test - ignore
no format changes
CodeGen removed - use original protobuf-net for this stuff
as reference - don't forget to NoteObject
aqla - tests
aqla attributes
default type