Convenient way of changing the resolution faster

[doodayev]

It was suggested to make this a GitHub Issue and so here it is.
Long story short, every time I want to change the resolution of ZealOS I need to go to KStart16.ZC and
change two lines (right now they're line 73 and 74) where it says:
REQUESTED_SCREEN_WIDTH: DU16 1024;
REQUESTED_SCREEN_HEIGHT: DU16 768;

In the following source file I made a few functions that read these two lines, allow you to write new values for these two lines, and also with the "DoEverything" function it will run those two functions together along with BootHDIns;
I've also wrote down which resolutions work in Zeal on VirtualBox and which don't. Keep in mind that this is for ZealOS that uses the public domain bootloader and not Limine.

This code however is kind of poor since it uses hardcoded values so I'm just putting it here for reference.
RezChanger.TXT