ENH: Make more commands scriptable

Source/cmConfigureFileCommand.h

@@ -38,6 +38,11 @@ public:
    */
   virtual const char* GetName() { return "CONFIGURE_FILE";}
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * Succinct documentation.
    */