Beginnings of the "pass everything using a native type wrapper" console code.

- ConsoleValue class is now the base value class.
- ConsoleValueRef is now used to supply function parameters. Values are disposable.
- Script functions return values instead of just strings where possible.
- Variables can be disposable strings
- Bytecode changed

Fix the issues with console method parameters and fields which prevented missions from loading.

Engine/source/gui/editor/guiFilterCtrl.cpp

@@ -83,10 +83,9 @@ ConsoleMethod( GuiFilterCtrl, setValue, void, 3, 20, "(f1, f2, ...)"
 {
    Filter filter;
 
-   argc -= 2;
-   argv += 2;
+   StringStackWrapper args(argc - 2, argv + 2);
 
-   filter.set(argc, argv);
+   filter.set(args.count(), args);
 	object->set(filter);
 }
 

Engine/source/gui/editor/inspector/variableInspector.cpp

@@ -63,5 +63,5 @@ void GuiVariableInspector::loadVars( String searchStr )
 
 ConsoleMethod( GuiVariableInspector, loadVars, void, 3, 3, "loadVars( searchString )" )
 {
-   object->loadVars( argv[2] );
+   object->loadVars( (const char*)argv[2] );
 }