Initial QTranslator support

Add a new page for inspecting QTranslator instances
Since the address on its own is mostly useless, I'd consider merging this with the name column and using Util::shortDisplayString, like the object models do. To also have the address in the few cases where you'd need it (such as working with GDB simultaneously), consider adding a tooltip (Utill:: has a method for that as well). Would also provide consistency with the other object models, and saves some horizontal space.