Foundation Classes - Inherited Standard_Failure from std::exception (#984)

First patch in iterative renovation of exceptions.

- Simplify exception classes to be container of data only.
- Removed redundant inclusion of <Standard_Type.hxx> in various header files across the project.
- Removed Set methods for failure and its define template.
- Removed Raise and Rerise static methods.
- Remove Instance and Throw methods
- Deprecated getting message with old approach, and moving to what()
- Update ErrorHandler to handle only specific list of exceptions.

src/ModelingData/TKGeomBase/Extrema/Extrema_GCurveLocator.hxx

@@ -16,6 +16,7 @@
 #define _Extrema_GCurveLocator_HeaderFile
 
 #include <Standard.hxx>
+#include <Standard_Real.hxx>
 #include <Standard_DefineAlloc.hxx>
 #include <Standard_OutOfRange.hxx>
 

src/ModelingData/TKGeomBase/GeomTools/GeomTools_Debug.cxx

@@ -71,7 +71,7 @@ const char* GeomTools_Dump(void* theHandlePtr)
   }
   catch (Standard_Failure const& anException)
   {
-    return anException.GetMessageString();
+    return anException.what();
   }
 }