ENH: Multiple updates to function objects

Updated objects
- corrected Peclet number for compressible cases
- propagated log flag and resultName across objects

New function objects
- new fluxSummary:
  - calculates positive, negative, absolute and net flux across face
    zones
- new runTimeControl
  - abort the calculation when a user-defined metric is achieved.
    Available options include:
    - average value remains unchanged wrt a given threshold
    - equation initial residual exceeds a threshold - useful to abort
      diverging cases
    - equation max iterations exceeds a threshold - useful to abort
      diverging cases
    - min/max of a function object value
    - min time step exceeds a threshold - useful to abort diverging
      cases
- new valueAverage:
  - average singular values from other function objects, e.g. Cd, Cl and
    Cm from the forceCoeffs function object

src/postProcessing/functionObjects/utilities/yPlus/yPlus.C

@@ -229,13 +229,10 @@ void Foam::yPlus::write()
         const volScalarField& yPlus =
             obr_.lookupObject<volScalarField>(resultName_);
 
-        if (log_)
-        {
-            Info
-                << type() << " " << name_ << " output:" << nl
-                << "    writing field " << yPlus.name() << nl
-                << endl;
-        }
+        if (log_) Info
+            << type() << " " << name_ << " output:" << nl
+            << "    writing field " << yPlus.name() << nl
+            << endl;
 
         yPlus.write();
     }

src/postProcessing/functionObjects/utilities/yPlus/yPlusTemplates.C

@@ -69,12 +69,9 @@ void Foam::yPlus::calcYPlus
             const scalar maxYplus = gMax(yPlusp);
             const scalar avgYplus = gAverage(yPlusp);
 
-            if (log_)
-            {
-                Info<< "    patch " << patch.name()
-                    << " y+ : min = " << minYplus << ", max = " << maxYplus
-                    << ", average = " << avgYplus << nl;
-            }
+            if (log_) Info<< "    patch " << patch.name()
+                << " y+ : min = " << minYplus << ", max = " << maxYplus
+                << ", average = " << avgYplus << nl;
 
             file() << obr_.time().value()
                 << token::TAB << patch.name()