ENH: processorFaPatch: use internal-edge algos for processor edges to ensure parallel consistency

- The edgeInterpolation::makeCorrectionVectors() disables the non-orthogonality
correction if the calculated non-orthogonality coefficient is below 0.1.
However, this activation routine only considers internal edges, and excludes
any processor edges, resulting in inconsistent parallel calculations. This
routine is removed.
- Fatal errors are replaced with zero-valued fields for non-orthogonality-
and skewness-correction routines.

tutorials/heatTransfer/buoyantPimpleFoam/hotRoomWithThermalShell/system/finite-area/faSchemes

@@ -21,7 +21,7 @@ ddtSchemes
 
 gradSchemes
 {
-    default         none;
+    default         Gauss linear;
     grad(jouleHeatingSource:V_ceilingShell) Gauss linear;
 }