v49 * add accessibility support for run_archiso and the releng profile * remove build.sh functionality from profiles * add documentation on how to create profiles * enable non-mkinitcpio based hosts to build images * extend profiledef.sh by settings for image type and image creation options * ensure to be able to re-run more steps * do not require root for mkarchiso help output * add squashfs-tools and udftools to the releng profile * add basic bootloader capabilities for UEFI to the baseline profile * update mkinitcpio.conf to be in sync with mkinitcpio 29