More precise error logs for Messager

Runtime/Events/OnMessageEvent.cs

             }
             catch(System.Exception e)
             {
-                UnityEngine.Debug.LogError(string.Format("Exception Caught while catching message '{0}' on Object '{1}'", MessageName, gameObject.name));
+                UnityEngine.Debug.LogError(string.Format("OnMessageEvent : Exception Caught while catching message '{0}' on Object '{1}'", MessageName, gameObject.name));
                 UnityEngine.Debug.LogException(e);
             }
         }

Runtime/Messager/Messager.cs

                 }
                 catch (Exception e)
                 {
-                    Debug.LogError(string.Format("Caught {0} while sending Message {1}", e.GetType().Name, eventName));
+                    Debug.LogError(string.Format("Messager : Caught {0} while sending Message {1}", e.GetType().Name, eventName));
                     Debug.LogException(e);
                 }
             }