Listen on the group socket and handle requests

src/common/serialization.cpp

@@ -108,3 +108,7 @@ AEffect& update_aeffect(AEffect& plugin, const AEffect& updated_plugin) {
 
     return plugin;
 }
+
+bool PluginParameters::operator==(const PluginParameters& rhs) const {
+    return plugin_path == rhs.plugin_path && socket_path == rhs.socket_path;
+}