Add support for doas

[pixelherodev]

This adds support for doas, an alternative to sudo.

How to test

Run bash dev_setup.sh on a system with doas installed and in PATH, and with sudo either not installed, or not in the PATH.

Contributor license agreement signed?

Not yet; I've filed the form, and am waiting for the email.

[devops-mycroft]

Hello, @pixelherodev, thank you for helping with the Mycroft project! We welcome everyone
into the community and greatly appreciate your help as we work to build an AI
for Everyone.

To protect yourself, the project, and users of Mycroft technologies we require
a Contributor Licensing Agreement (CLA) before accepting any code
contribution. This agreement makes it crystal clear that along with your
code you are offering a license to use it within the confines of this project.
You retain ownership of the code, this is just a license.

Please visit https://mycroft.ai/cla to initiate this one-time signing. Thank
you!

[devops-mycroft]

Voight Kampff Integration Test Succeeded (Results)

[devops-mycroft]

Voight Kampff Integration Test Succeeded (Results)

[pixelherodev]

CLA signed.

[krisgesling]

Thanks for the contribution!

We got your CLA, and you've been added to our list of excellent humans

I was not aware of doas, are there any distro's that use it by default and don't have sudo?
Just wondering the easiest way to test this on a clean environment.

[pixelherodev]

I think the BSDs do :P

I use doas on Gentoo; I can confirm it works because I used it to build mycroft locally (even if I've had unrelated issues actually running it).

[krisgesling]

Haven't heard from any other Gentoo / doas users, but this can't hurt so let's merge it in :)