STYLE: remove 'functions' dictionary scope from catalyst files

- relocate to controlDict, since more than a single function object
  is often used.

src/catalyst/catalystDict

 // ParaView Catalyst function object for OpenFOAM (-*- C++ -*-)
 
-functions
-{
 catalyst
 {
     type    catalyst;
     libs    ("libcatalystFoam.so");
+
     executeControl  timeStep;
     writeControl    none;
 
-        // OR #includeEtc "caseDicts/insitu/catalyst/catalyst.cfg"
+    // ^^^^^
+    // #includeEtc "caseDicts/insitu/catalyst/catalyst.cfg"
+
 
     // mkdir  "<case>/someDir";
 
@@ -55,7 +56,6 @@ functions
         }
     }
 }
-}
 
 
 // ************************************************************************* //

tutorials/finiteArea/sphereSurfactantFoam/sphereTransport/system/catalyst

 // ParaView Catalyst function object for OpenFOAM (-*- C++ -*-)
 
-functions
-{
 catalyst
 {
     #includeEtc "caseDicts/insitu/catalyst/catalyst.cfg"
+
     scripts
     (
         "<system>/scripts/writeArea.py"
@@ -12,6 +11,7 @@ functions
 
     inputs
     {
+        // channel = area
         area
         {
             type    area;
@@ -20,6 +20,5 @@ functions
         }
     }
 }
-}
 
 // ************************************************************************* //

tutorials/finiteArea/sphereSurfactantFoam/sphereTransport/system/controlDict

@@ -43,6 +43,9 @@ timePrecision       6;
 
 runTimeModifiable   yes;
 
+functions
+{
     #include "catalyst"
+}
 
 // ************************************************************************* //

tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/system/catalyst

 // ParaView Catalyst function object for OpenFOAM (-*- C++ -*-)
 
-functions
-{
 catalyst
 {
     #includeEtc "caseDicts/insitu/catalyst/catalyst.cfg"
@@ -16,6 +14,7 @@ functions
 
     inputs
     {
+        // channel = region, region/mesh, region/patches
         region
         {
             // All regions
@@ -26,6 +25,5 @@ functions
         }
     }
 }
-}
 
 // ************************************************************************* //

tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/system/controlDict

@@ -52,6 +52,9 @@ maxDi           10.0;
 
 adjustTimeStep  yes;
 
+functions
+{
     #include "catalyst"
+}
 
 // ************************************************************************* //

tutorials/incompressible/icoFoam/cavity/system/catalyst

 // ParaView Catalyst function object for OpenFOAM (-*- C++ -*-)
 
-functions
-{
 catalyst
 {
     #includeEtc "caseDicts/insitu/catalyst/catalyst.cfg"
@@ -21,6 +19,7 @@ functions
 
     inputs
     {
+        // channel = region, region/mesh, region/patches
         region
         {
             // Selected fields (words or regex)
@@ -28,6 +27,5 @@ functions
         }
     }
 }
-}
 
 // ************************************************************************* //

tutorials/incompressible/icoFoam/cavity/system/controlDict

@@ -45,7 +45,9 @@ timePrecision   6;
 
 runTimeModifiable true;
 
+functions
+{
     #include "catalyst"
-
+}
 
 // ************************************************************************* //

tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/system/catalyst

 // ParaView Catalyst function object for OpenFOAM (-*- C++ -*-)
 
-functions
-{
 catalyst
 {
     #includeEtc "caseDicts/insitu/catalyst/catalyst.cfg"
@@ -14,6 +12,7 @@ functions
 
     inputs
     {
+        // channel = region, region/mesh, region/patches
         region
         {
             type    default;
@@ -22,6 +21,7 @@ functions
             fields  ( T U p rho );
         }
 
+        // channel = cloud
         cloud
         {
             type    cloud;
@@ -34,6 +34,5 @@ functions
         }
     }
 }
-}
 
 // ************************************************************************* //

tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/system/controlDict

@@ -51,6 +51,10 @@ maxCo           1.0;
 
 maxDeltaT       1;
 
+
+functions
+{
     #include "catalyst"
+}
 
 // ************************************************************************* //