ITS: add CheckDROF macro (#14533)

Author: f3sch

Detectors/ITSMFT/ITS/macros/test/CMakeLists.txt

@@ -113,3 +113,8 @@ o2_add_test_root_macro(CheckDuplicates.C
                        PUBLIC_LINK_LIBRARIES O2::DataFormatsITS
                                              O2::DataFormatsITSMFT
                        LABELS its)
+
+o2_add_test_root_macro(CheckDROF.C
+                       PUBLIC_LINK_LIBRARIES O2::DataFormatsITS
+                                             O2::DataFormatsITSMFT
+                       LABELS its)