Automagic SD card import

I'll most likely forget this, so I'll have this documentation available for later use.

But tl;dr this is for no GUI automount of SD card, run copy and umount automagically.

Requires following packages: udiskie, udisks2

• polkit-rule goes to polkit folder, say /etc/polkit-1/rules.d/69-mounter.rules on Debian based polkitted things
• service units go to /usr/lib/systemd/system and change the user on udiskie.service
• copy file goes where ever the files are (edit the unit sd-copy and script)
• no udev bullshit required (yay)