Tutorials: Added missing "application" entries.

tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/verticalChannel/system/controlDict

@@ -15,6 +15,8 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
+application     porousExplicitSourceReactingParcelFoam;
+
 startFoam       latestTime;
 
 startTime       0;

tutorials/lagrangian/steadyReactingParcelFoam/verticalChannel/system/controlDict

@@ -15,6 +15,8 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
+application     steadyReactingParcelFoam;
+
 startFoam       latestTime;
 
 startTime       0;