Reader: Looping over list of possible readers

.., plus adding freecadcmd-daily as the last alternative to the list. Which means, if you have the nightly build installed on Ubuntu only, you can make use of this installation.
2 jobs for master-looping-over-list-of-command-names-and-allow-daily-install in 1 minute and 4 seconds (queued for 2 seconds)
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