feat: macOS 15.5 Sequoia support (#9)

* feat: macOS 15.5 support

* feat: macOS 15.5 support

Author: gajjartejas

15.x/15.5/README.md

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+### Changelog
+
+1.  macOS Sequoia 15.5 support added.
+2.  OpenCore version updated to 1.0.4.
+3.  Kexts updated.
+
+### What's Working/Not working
+
+1.  TrackPad high cpu(10% to 15%) usages and laggy - this might be hardware related, same issue in Windows 11.
+2.  Sleep not working.
+3. `AirportItlwm.kext` is not working, please use `itlwm.kext` + `HeliPort`.
+
+### Important
+
+Please add `SystemSerialNumber`, `SystemUUID` and `MLB`.
+Please backup your efi before upgrading.
+
+### Download
+
+Please check release section to download.