src/OpenFOAM: Rationalised use of enumerations by using the C++11 scoped form

for

    db/functionObjects/timeControl/timeControl.H: timeControls
    primitives/bools/Switch/Switch.H: class switchType
    primitives/strings/fileName/fileName.H: fileType
    primitives/strings/wordRe/wordRe.H: compOption

applications/utilities/parallelProcessing/reconstructPar/reconstructPar.C

@@ -520,7 +520,7 @@ int main(int argc, char *argv[])
                         cloudDirs = fileHandler().readDir
                         (
                             lagrangianDir,
-                            fileName::DIRECTORY
+                            fileType::directory
                         );
                     }