Initial commit

Contains an empty Qt project. One thing that slightly concerns me is that
when it's run, it doesn't quit on its own (there's no "Press any key to
continue . . ." message). This is probably not a big deal anyway though,
especially when I get a window in there.
Change QtCoreApplication to a QApplication

Had some trouble remembering to add the Widgets module, leading to some
unresolved external symbols. The rust is starting to break away.
Add a MainWindow class

This class subclasses the QMainWindow class (I honestly don't know what's
so special about this class as opposed to a good ol' basic QWidget).
Add a few comments

Comments are important, and I'm going to try to keep this version of
appedit as organized as possible (although this will be challenging when
I bring in all the old code).
Add a toolbar to the main window

This must be part of the secret of main windows: they allow for easy
addition of toolbars and the like.
Set a size hint for the main window

Now it doesn't start out so small.
Don't let toolbar be moveable
Add a central widget to the main window

The central widget will just hold the main layout when I get to it.
Add a horizontal layout to the central widget
Add vertical layout, remove margins and spacing

The reason I'm removing margins and spacing is so that I can add separator
lines later on that won't be clipped to the margins. There might be a
better way to do this later on, but for now this will work.
Add a scollable container for the control panel

I'm anticipating there will be lack of space for the controls, so adding
a scrollable container seems prudent.
Add a vertical layout to the scrollable container

This layout will be the main control panel layout. Now that I think
about it, I should probably just hold on to a few of these layouts
and swap them out with the toggles. Future work.
Add a horizontal separator below the control panel
Add a placeholder widget for the information box below the control panel

I gave it a minimum height of 100 so you could see it!
Add a vertical line separating the left side from the right side
Add another placeholder widget for the main OpenGL widget

Again, I forced a minimum size so I could see it.
Modularize control sets, begin creating camera/projection ctrl set

So the control sets will be able to be switched out of the scroll view
dynamically. All I have so far is a spinbox for the number of projectors.
Add spacer at the end of the cam/proj control set
Add projector resolution options to control panel
Change default height