add embedded fields to stdlib template

Author: nickjackson

internal/codegen/golang/templates/stdlib/queryCode.tmpl

@@ -13,7 +13,10 @@ type {{.Arg.Type}} struct { {{- range .Arg.UniqueFields}}
 {{end}}
 
 {{if .Ret.EmitStruct}}
-type {{.Ret.Type}} struct { {{- range .Ret.Struct.Fields}}
+type {{.Ret.Type}} struct { {{- range .Ret.Struct.EmbedFields}}
+  {{.Name}} {{.Type}} {{if $.EmitJSONTags}}{{$.Q}}{{.Tag}}{{$.Q}}{{end}}
+  {{- end}}
+  {{- range .Ret.Struct.Fields}}
   {{.Name}} {{.Type}} {{if or ($.EmitJSONTags) ($.EmitDBTags)}}{{$.Q}}{{.Tag}}{{$.Q}}{{end}}
   {{- end}}
 }