Doesn't seem to support float types from Protobuf

[bstanley0811]

When generating the client from the protobuf file where a variable has type float, the client throws an error stating that the field in question doesn't exist. Also when reviewing the output of the generated files, I'm seeing that the client is generating an entire new resolver based on the object the float is associated with.

// filename: api.proto

service API {
   rpc GetSomething(GetSomethingRequest) returns (GetSomethingResponse);
}

message GetSomethingRequest {
  int64 id = 1;
}

message GetSomethingResponse {
    int64 id = 1;
    string name = 2;
    repeated Something;
}

message Something {
  int64 id = 1;
  float density = 2;   // type float associated to "Something" object
}

// Error message received when generating from this
panic: validation failed: packages.Load: /app/twirpql/resolver.go:132:15: r.API.Density undefined (type mySomething.API has no field or method Density)
/app/twirpql/resolver.go:132:28: undeclared name: req

// filename: resolver.go
// New resolver added here (this is similar in `generated.go`)

...

func (r *Resolver) Something() SomethingResolver {
	return &somethingResolver{r}
}

...

type somethingResolver struct{ *Resolver }

func (r *somethingResolver) Density(ctx context.Context, obj *api.Something) (float64, error) {
	return r.API.Density(ctx, req)
}

...