Add disk label

https://refit.sourceforge.net/info/vollabel.html
grub-render-label(1)
https://web.archive.org/web/20201023104810/https://opensource.apple.com/source/kext_tools/kext_tools-623.120.1/bootcaches.plist.auto.html

Global/macOS.gitignore

@@ -21,6 +21,7 @@ Icon[
]
 .hotfiles.btree
 .vol
 .file
+.disk_label*
 
 # Directories potentially created on remote AFP share
 .AppleDB