message: core: update some hard-coded values in backend
diff: @@ -50,7 +50,7 @@ public:
  const rpc::core::ListRunningPluginsRequest * /* request */,
  dronecode_sdk::rpc::core::ListRunningPluginsResponse *response) override
  {
  - std::string plugin_names[4] = {"action", "mission", "telemetry", "info"};
  + std::string plugin_names[7] = {"action", "calibration", "camera", "core", "mission", "telemetry", "info"};
  for (const auto plugin_name : plugin_names) {
  auto plugin_info = response->add_plugin_info();
  