lexgen: slightly more robust 'unkown' handling (hack) (#448)
This is a bit more robust than the current situation where we manually
comment things out.
Just looks for the specific field names `didDoc` or `plcOp` and plops in
an `*interface{]` type instead for those.
Could also have done `*map[string]interface{}` but I was worried not
initializing that datatype; maybe unwarranted.
My assumption is that `json.RawMessage` would be best here for JSON
stuff, but that causes problems for CBOR stuff.
authored by