ADD: added a simple threadsafe map class

tests/test_SafeMap.cpp

@@ -0,0 +1,41 @@
+
+#include <memory>
+#define CATCH_CONFIG_MAIN
+#include <catch2/catch.hpp>
+#include <SimCore/SafeMap.hpp>
+#include <loguru.hpp>
+
+
+
+
+SCENARIO("Testing the SimCore Track")
+{
+  GIVEN("different Attributes for a Track in different forms")
+  {
+   
+    int i = 0;
+    WHEN("constructing Track Object with data")
+    {
+    auto store =  SimCore::SafeMap<std::string, int>();
+       
+    store.addValue("h1", 1);
+    store.addValue("h2", 2);
+    LOG_S(INFO)<<"store size = " << store.size();
+
+    store.removePair("h2");
+      THEN("check if Track attributes are correct")
+      {
+        REQUIRE(store.size() == 1);
+        REQUIRE(store.getValue("h1") == 1);
+
+        store.overRideValue("h1", 3);
+        REQUIRE(store.size() == 1);
+        REQUIRE(store.getValue("h1") == 3);
+
+
+
+
+      } //THEN
+    } // WHEN
+  } // GIVEN
+} //SCENARIO