Add GPT support.

[TomAwezome]

No description provided.

[doodayev]

(Just making a note)
There are 7 source files in the whole repo that reference MBR (at least when searching the github with the term "MBR") :
DiskPart.ZC (within System/BlkDev/)
LimineMHDIns.ZC (within System/Boot/)
DiskFormat.ZC (within Kernel/BlkDev/)
DiskAddDev.ZC (within Kernel/BlkDev/)
BootMHDIns.ZC (within System/Boot/)
FileSysRedSea.ZC (within Kernel/BlkDev/)
TOSDistro.ZC (within Demo/AcctExample/TOS/)

8 if you include the build-iso script
The rest are DolDoc files

[doodayev]

In my opinion it is better to not make these jokes in the issue trackers and such because then Google and other search engines will start flagging this as related to that technology instead of GUID Partition Table. Anytime someone uses the acronym for GUID Partition Table, they will instead get unrelated junk as the results until they specify they mean the full thing, defeating the purpose of using acronyms in the first place.

I'm sure you know that this is about GUID Partition Table and not junk but to hopefully counteract search engine shenanigans I will repeat the word GUID Partition Table one last time.