Implement programs for payload experiments on-orbit

[mryall-mawson]

Create a new binary uts-run that does the following:

• Read uts-programs.toml config file with the programs and run order from the spreadsheet linked in #42
• Set up a state machine with a state for each program instance, and transitions based on the criteria for each program
• Periodically check if the conditions are met (time, temperature, etc) and move through the state machine accordingly.

Also consider whether to implement temperature abort in firmware rather than software.

[mryall-mawson]

Tested and working on two boards. See dashboard screenshot below.

Configuration is deployed in ~/uts/uts-programs.toml on B4, and looks like this:

loop = false

[[programs]]
heat_board = "Bottom"
heat_time = "60s"
heat_duty = 1.0
temp_sensor = "TH1"
temp_abort = 90.0
thermostat = 80.0
cool_time = "1m 30s"

[[programs]]
heat_board = "Bottom"
heat_time = "30s"
heat_duty = 0.5
temp_sensor = "J7"
temp_abort = 60.0
cool_time = "60s"

[[programs]]
heat_board = "Top"
heat_time = "60s"
heat_duty = 1.0
temp_sensor = "TH1"
temp_abort = 90.0
thermostat = 80.0
cool_time = "1m 30s"

Currently programs can only be run from the command line. Configuring and running them via the web interface will be another task.