Enum support in progress.
Merge branch 'master' into proto-full-types
Working on full types for protos.
Support enums and other field types for protos.
Remove EnumTypeRef, formatting.
Test enums in protos.
Confirm more to the TC52 Dart Enum spec.
Merge pull request #274 from alxhub/proto-full-types

Full type support for protos, including enums (!)