Move away from wpa_supplicant to iwd

[uuuvn]

It is better to use iwd instead of wpa_supplicant because the latter does not support WPA3 on broadcom chips (which are installed on macs) and in general iwd is more modern, easy to use and maintained then wpa_supplicant.
This PR is a draft because it must be merged at the same time as new release image is uploaded because otherwise it may confuse people who expect iwd to be availible in old installation ISO with wpa_supplicant.

[tpwrules]

I don't think the disparaging comments are warranted and I would like them removed, but this seems reasonably reasonable. If you target the develop branch then it won't update the main guide at the listed URL and confuse people.

[uuuvn]

Removed them, can you merge this into WIP branch?

[tpwrules]

The commit hash changed but I don't see that they are removed?

[uuuvn]

Hmm, interesting. Let me check again

[uuuvn]

[uuuvn]

Looks like i forgot to do git add before git commit --amned, sorry

[tpwrules]

Looks good and works, thanks.