Convert a .ico file to a .cur file with offsets.

This is the first time I am writing something in Odin,
I am new to this language and am still learning it.
So expect issues!

Wrote this for fun, and because I needed it.
I like the cursor in "Cult of the Lamb",
and I wanted to use it for my desktop.

Initially I used a hexeditor and fixed the .ico file
myself, but I figured this could be a neat little
excercise in learning Odin, so I tried to write
an application to do this for me.

1. Put the IconToCursor.exe in the same folder as your .ico file.
2. Run IconToCursor.exe.
3. Type in the icon file name (including the .ico part).
4. Type in the x coordinate (from left to right).
5. Type in the y coordinate (from top to bottom).