feature: support creating multiple metric groups from metrics

This replaces the existing single metric group creation api

Related-To: NEO-11186

Signed-off-by: Joshua Santosh Ranjan <joshua.santosh.ranjan@intel.com>

level_zero/tools/source/metrics/metric.h

@@ -147,9 +147,11 @@ struct MetricImp : public Metric {
     }
     ~MetricImp() override = default;
     MetricImp(MetricSource &metricSource) : metricSource(metricSource) {}
+    bool isImmutable() { return isPredefined; }
 
   protected:
     MetricSource &metricSource;
+    bool isPredefined = true;
 };
 
 struct MetricGroup : _zet_metric_group_handle_t {

level_zero/tools/source/metrics/metric_oa_enumeration_imp.h

@@ -239,16 +239,12 @@ struct OaMetricImp : public MetricImp {
 
     static Metric *create(MetricSource &metricSource, zet_metric_properties_t &properties);
 
-    bool isImmutable() { return isPredefined; }
-
   protected:
     void copyProperties(const zet_metric_properties_t &source,
                         zet_metric_properties_t &destination);
 
     zet_metric_properties_t properties{
         ZET_STRUCTURE_TYPE_METRIC_PROPERTIES};
-
-    bool isPredefined{};
 };
 
 } // namespace L0

level_zero/tools/test/unit_tests/sources/metrics/mock_metric_source.h

@@ -117,6 +117,10 @@ class MockMetric : public L0::MetricImp {
     ze_result_t destroy() override {
         return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
     }
+
+    void setPredefined(bool status) {
+        isPredefined = status;
+    }
 };
 
 } // namespace ult