Unexpected fields in JSON Schema

[smoya]

I noticed the resulting JSON Schema contains unexpected fields, such as repeated and optional (there are more), which are clearly Protobuf field rules.

See https://github.com/GreenRover/proto-schema-parser/blob/master/test/comments.proto.result.json#L43-L44

I expect those should not be included in the produced JSON Schema.

[GreenRover]

was fixed, no more funny extra fields. That are not start with "x-"