Use different range of values for customized events

.vscode/settings.json

-{
-    "files.associations": {
-        "cctype": "cpp",
-        "clocale": "cpp",
-        "cmath": "cpp",
-        "csignal": "cpp",
-        "cstdarg": "cpp",
-        "cstddef": "cpp",
-        "cstdio": "cpp",
-        "cstdlib": "cpp",
-        "cstring": "cpp",
-        "ctime": "cpp",
-        "cwchar": "cpp",
-        "cwctype": "cpp",
-        "array": "cpp",
-        "atomic": "cpp",
-        "strstream": "cpp",
-        "*.tcc": "cpp",
-        "bitset": "cpp",
-        "chrono": "cpp",
-        "codecvt": "cpp",
-        "complex": "cpp",
-        "condition_variable": "cpp",
-        "cstdint": "cpp",
-        "deque": "cpp",
-        "list": "cpp",
-        "unordered_map": "cpp",
-        "vector": "cpp",
-        "exception": "cpp",
-        "algorithm": "cpp",
-        "functional": "cpp",
-        "iterator": "cpp",
-        "map": "cpp",
-        "memory": "cpp",
-        "memory_resource": "cpp",
-        "numeric": "cpp",
-        "optional": "cpp",
-        "ratio": "cpp",
-        "set": "cpp",
-        "string": "cpp",
-        "string_view": "cpp",
-        "system_error": "cpp",
-        "tuple": "cpp",
-        "type_traits": "cpp",
-        "utility": "cpp",
-        "fstream": "cpp",
-        "future": "cpp",
-        "initializer_list": "cpp",
-        "iomanip": "cpp",
-        "iosfwd": "cpp",
-        "iostream": "cpp",
-        "istream": "cpp",
-        "limits": "cpp",
-        "mutex": "cpp",
-        "new": "cpp",
-        "ostream": "cpp",
-        "shared_mutex": "cpp",
-        "sstream": "cpp",
-        "stdexcept": "cpp",
-        "streambuf": "cpp",
-        "thread": "cpp",
-        "cfenv": "cpp",
-        "cinttypes": "cpp",
-        "typeindex": "cpp",
-        "typeinfo": "cpp",
-        "valarray": "cpp"
-    }
-}
\ No newline at end of file

src/common/3gpp_29.508.h

@@ -31,9 +31,9 @@ typedef enum smf_event_e {
   SMF_EVENT_PLMN_CH     = 4,
   SMF_EVENT_UE_IP_CH    = 5,
   SMF_EVENT_DDDS        = 6,
-  SMF_EVENT_PDUSESEST   = 7,
-  SMF_EVENT_QOS_MON     = 8,
-  SMF_EVENT_FLEXCN      = 99
+  SMF_EVENT_PDUSESEST   = 97,  // Customized event
+  SMF_EVENT_QOS_MON     = 98,  // Customized event
+  SMF_EVENT_FLEXCN      = 99   // Customized event
 } smf_event_t;
 
 static std::string smf_event_from_enum(smf_event_t e) {