Minor modifications to jfjoch_writer and OpenAPI

common/DetectorSetup.cpp

@@ -148,3 +148,12 @@ void DetectorSetup::SetTrimFiles(const std::vector<std::string> &filenames) {
 const std::vector<std::string> &DetectorSetup::GetTrimFileNames() const {
     return trim_file_names;
 }
+
+std::string DetectorSetup::GetSerialNumber() const {
+    return serial_number;
+}
+
+DetectorSetup &DetectorSetup::SerialNumber(const std::string &input) {
+    serial_number = input;
+    return *this;
+}