Merge remote-tracking branch 'origin/armem/readd_time_created' into fabianpk

# Conflicts:
#	source/RobotAPI/libraries/armem/core/base/EntityInstanceBase.h

source/RobotAPI/libraries/armem/core/base/EntityInstanceBase.h

@@ -44,7 +44,9 @@ namespace armarx::armem::base
      */
     struct EntityInstanceMetadata : public Metadata
     {
-        ///
+	/// Time when this value was created.
+        Time createdTime;
+
         /**
          * @brief Time this instance refers to.
          *
@@ -56,6 +58,7 @@ namespace armarx::armem::base
 
         /// Time when this value was sent to the memory.
         Time sentTime = Time::Invalid();
+
         /// Time when this value has arrived at the memory.
         Time arrivedTime = Time::Invalid();