* Included efidisk0 option to be able to create VMs with persitent EFI disks
* Added forgotten argument to create_vm invocation and missing test for update
* Added changelog fragment relevant to PR
* Fixed documentation issues (missing period, and added version) from review
* Removed breaking change dependency for new option, modified changelog fragment according to review
* Fixed typo in documentation
* Added examples of `efidisk0` usage
* Added examples of `efidisk0` usage
* Fixed lines containing blank spaces
* Rebased on 4.4.0, added efi option, added sanity checks on efi option
* Adjusted version_added to 4.5.0
* Corrected typo in create_vm invocation, adjusted merging of efi and efidisk0 options
* Updated efidosk0 option to dict, added flattening to str, added constraint on bios option if efidisk0 is set
* Replaced loop by list comprehension for efidisk0 flattening
* Removed unused code left over from refactor from efi/efidis0 options
