allow to generate standalone code

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

chi.go

@@ -23,7 +23,12 @@ func (g *Generator) chiGenerate(component string, plugin *protogen.Plugin) error
 
 		chiPackageFiles[file.GoPackageName] = struct{}{}
 		gname := "micro" + "_" + component + ".pb.go"
-		gfile := plugin.NewGeneratedFile(gname, file.GoImportPath)
+
+		path := file.GoImportPath
+		if g.standalone {
+			path = "."
+		}
+		gfile := plugin.NewGeneratedFile(gname, path)
 
 		gfile.P("// Code generated by protoc-gen-micro")
 		gfile.P("package ", file.GoPackageName)