COMP: mark function objects as removable

- ensures that unloading will not affect the rest of the table

src/avalanche/functionObjects/autoAreaToVolumeMapping.C

@@ -43,7 +43,7 @@ namespace functionObjects
 {
     defineTypeNameAndDebug(autoAreaToVolumeMapping, 0);
 
-    addToRunTimeSelectionTable
+    addRemovableToRunTimeSelectionTable
     (
         functionObject,
         autoAreaToVolumeMapping,

src/avalanche/functionObjects/gridfileWrite.C

@@ -45,7 +45,7 @@ namespace functionObjects
 {
     defineTypeNameAndDebug(gridfileWrite, 0);
 
-    addToRunTimeSelectionTable
+    addRemovableToRunTimeSelectionTable
     (
         functionObject,
         gridfileWrite,

src/avalanche/functionObjects/shapefileWrite.C

@@ -42,7 +42,7 @@ namespace functionObjects
 {
     defineTypeNameAndDebug(shapefileWrite, 0);
 
-    addToRunTimeSelectionTable
+    addRemovableToRunTimeSelectionTable
     (
         functionObject,
         shapefileWrite,