The constructor shouldn't be used as a dumping ground for all UI-related
initialization. Doing so makes it somewhat more difficult to reason about
how certain UI elements get created. It also puts unrelated identifiers in
the same scope.
This separates the UI creation out so code relevant to each component
is self-contained.
This is done to not have the device combo box be too small in width when making the main sizer fit into the window. Not fitting the sizer would alternatively break Hidpi so it was best to just add an empty sizer to workaround this problem.
This is more logical as the mic is plugged into an EXI slot so it should be configured via the GameCube config dialog. This also allows to pass the right port number for the new dialog.
The SDL backend crashes when you close a joystick after SDL_Quit has
been called. Some backends don't need to be shutdown and
re-initialized everytime, we can just ask to enumerate devices again.
Hotkeys
Make a new class that inherits from InputConfigDialog with a specialised constructor. The changes are mainly the top portion and it now uses tabs to categorise the hotkeys.
Redo the GCPad configuration dialog
The layout is similar, but it now allows flexibility to change it more easily.
Redo the GC Keyboard configuration dialog
Same layout.
Redo completely the Wiimote configuration dialog
Separated the controls into 2 tabs to make them less imposing overall.
Redo the Nunchuk configuration dialog
Similar layout, except for 2 control group sizers.
Redo the Classic controller configuration dialog
Same layout.
Redo the Guitar input configuration dialog
Stacked 2 sets of group together.
Redo the Turntable configuration dialog
More stacked groups and the window is much less wide.
Just setting up a switch on the type so that different dialogs can be instantiated. This also makes the extension type an enum because I don't see why not here and finally, it removes ControlGroupSizer. This removal allows to not dynamically generate the UI, but instead, let the specialised constructors do the layout.
Removed the unecessary forced tabbed layout, removed the layout part of the constructor and remade some method in preparation for tabbed styled input dialog such as the new hotkey configuration one. It breaks every inputconfigDialog, but this will get fixed in the next commits.
Also moved to a folder since there will be many more files created in the next commits so it gives better separation.
