Move stream operator from AppEnum header

This PR will reduce the compile time of code using AppEnum. 

* AppEnum: Move QTextStream operator to avoid include of QTextStream
* Avoid use of iostream in cafAssert
rator to avoid include of QTextStream

Include file profiling shows that include of QTextStream is a performance issue. Create a non-templated base class for AppEnum. Implement the QTextStream operator for this interface.

ApplicationLibCode/ReservoirDataModel/RigFaultReactivationModelGenerator.h

@@ -23,12 +23,13 @@
 #include "cvfStructGrid.h"
 #include "cvfVector3.h"
 
+#include <QString>
+
 #include <array>
+#include <map>
 #include <utility>
 #include <vector>
 
-#include <QString>
-
 class RigFault;
 class RigMainGrid;
 class RigGriddedPart3d;

ApplicationLibCode/ReservoirDataModel/RigThermalFractureDefinition.cpp

@@ -21,6 +21,8 @@
 #include "RiaEclipseUnitTools.h"
 #include "RiaLogging.h"
 
+#include "cafAssert.h"
+
 #include <cmath>
 
 //--------------------------------------------------------------------------------------------------