- Remove integrated OpenCore creation/extraction code from quickget:
require_mtools/sgdisk helpers, create_macos_disk_with_opencore,
download_opencore and related logic
- Simplify quickemu macOS boot flow to expect a separate OpenCore.qcow2
or ESP.qcow2; streamline device/drive argument construction
- Remove mtools and gptfdisk from devshell.nix and package.nix
- Always download OpenCore.qcow2 via legacy method and update status
messages
Signed-off-by: Martin Wimpress <martin@wimpress.org>
7825f33527