[TASK] Supervisor node

[alekskl01]

Description of task

We need to cut the thrusters if we lose connection to the seapath.

Suggested Workflow

• Look into managed/lifecycle nodes.
• Create something like a watchdog timer for the topics publishing pose data from the seapath.

Specifications

• A callback function is called when the topic has been inactive for a specified amount of time.
• In that case all thrust should be set to zero

Contacts

• Information about managed nodes.

Code Quality

• Every function in header files are documented (inputs/returns/exceptions)
• The project has automated tests that cover MOST of the functions and branches in functions (pytest/gtest)
• The code is documented on the wiki (provide link)

[chrstrom]

@A1ice-Z @alekskl01 I drafted something very crude in #193. Have a look and feel free to suggest/implement stuff yourself if you find something that is worth adding.