include M80 and M81 commands

[sergiobm509]

Hello, it would be interesting to add 2 buttons for turning on and off the printers that use an Atx power supply like mine (similar to the reset button but located in the control option) This way you could turn on the printer to do maintenance operations from octoprin-tft   a greeting

[synman]

Any idea if this is going to get merged soon? If not I'm tempted to move to @darksid3r's fork. My apologies if y'all have a system going. I'm still fairly new to this project.