Initial import new repository splitting out the EDK2 (Efi Development Kit II) backed OVMF (Open Virtual Machine Firmware) from pve-qemu package, where only pre-built BLOBs were tracked. Borrow some the built style from the Debian Upstream package. We do not provide/conflict ovmf from Debian, but rather see this as it's own package, providing the FW files under its own path. Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>