Update VNC functionality for Proxmox 7 (#148)

Chown `targets`, Add run and kill scripts

Lol Joe figured it out

* Dude it works holy shit

We need to fix some logistical bugs, probably, and also like remove dead
code lol

* Open VNC session on the node that the VM belongs

Figured out why I couldn't open a session on anything but 01. It was
because I was making the API call on proxmox01-nrh. So that's where the
session opened. I hope that by doing this, it will balance the load
(what little there is) from VNC sessions.

* Update websockify-related tasks

* Remove SSH key from build

* Add option to specify VNC port.

Should be 443 for OKD, probably 8081 for development.

This hosts a smattering of fixes, acutally uses gunicorn properly(?),
launches websockify correctly, and introduces MORE DEAD CODE!

TODO: Fix the scheduling system

* Make things not crash as much :)

* Remove obviously dead code

There's still some code in here that may require more careful
extraction, testing, and review, so I'm saving that for another PR.

* Fix Joe's complaints

* Replace hardcoded URL

requirements.txt

@@ -2,12 +2,13 @@ black~=21.9b0
 csh-ldap==2.4.0
 click~=7.1.2
 ddtrace~=1.2.1
+deprecated==1.2.13
 flask==1.1.4
 jinja2==2.11.3
 flask-pyoidc==1.3.0
 gunicorn==20.0.4
 markupsafe==2.0.1
-paramiko==2.7.2
+paramiko==2.11.0
 proxmoxer==1.1.1
 psutil==5.8.0
 psycopg2-binary==2.9.3