Add configurable automation of instruments

[ethanjli]

We need a way to script a sequence of MQTT commands to send based on some schedule. The minimum requirement for us will just be to have a config file (e.g. yaml), which we can store in a single text field and run only a single action, with no user-facing error reporting. Other Planktoscope users definitely need something more user-friendly, but that is out-of-scope for this issue.

• Make a DB table & GUI for instrument automation scripts (relationship between scripts and instruments is many-to-one); there should be a checkbox for whether the script is enabled
• Enable setting a name for each camera and controller in the GUI, for use in the scripts
• Use a config (perhaps in HCL, see https://hcl.readthedocs.io/en/latest/index.html) for scheduling a single action, perhaps using https://github.com/go-co-op/gocron
• Provide an automation action for running the Planktoscope pump
• Implement lookup of Planktoscope clients by controller name. We can make a collection of ControllerActioners which uses a selects a ControllerActionStore (based on controller protocol) to select a ControllerActioner by ID.