add Linux debug menus Qt Windows build 

Makes the windows Qt build behave like the Linux version. This doesn't affect the normal Windows build with the *.sln and only makes a difference if you compile with the Qt/PPSSPPQt.pro.

details about of the build and crashes fixes are in the commit log of 2401582

I have no clue whether this `native Subproject commit` is helping or hurting my cause but I'd like to know if I should just not change the subproject revision at all in pull requests or make sure it has a compatible revision.