Changelog:
buildiso/check-yaml:
* dropped shared Packages-Desktop file, sonar made it impractical
* switched iso booting to syslinux for mbr boot
* removed plymouth theme setting in profile.conf, now handled by theme package
* synced initcpio miso hooks with upstream arch
* implemented optional persistence for live media (-m switch)
* reorganized the profile's chroot_dir, the resulting iso dir for squashing moved one level up the tree
* improved ext4 or fat img mounting
Profiles:
* new tags:
* '>manjaro'
* '>sonar'
* '>basic'
* 'extra'
* any profile now has standardized Packages-Desktop, no shared list merged
* reorganized Packages-Live, Packages-Root to always produce same install, regardless of netinstall or unsquash images
* calamares netinstall yaml files moved into a separate repo [calamares-netgroups](https://github.com/manjaro/calamares-netgroups)
* renamed the two profile.conf netinstall switches
* configure calamares for netinstall netinstall=true/false(default: netinstall=false)
* configure netinstall to use chrootcfg instead of unpackfs (default: unpackfs) chrootcfg=true/false **if** netinstall=true