Be able to sort watch list by name

[DrPain]

Right now the watch list in the debugger displays variables in the order in which they are first encountered. When working with large arrays, and many variables, it can be very difficult to find the one variable you need to see. It would be helpful to be able to sort the watch list in alphabetical order, even if it has to be done explicitly by the user (added as usual, but sorted on command).