Yakut file commands

The YAML field spec should be provided in one argument exactly and be a valid YAML document:

yakut call 4 uavcan.file.read '[0, "/file"]'

You can also specify the fields manually:

yakut call 4 uavcan.file.read '{offset: 0, path: "/file"}'

or even:

yakut call 4 uavcan.file.read '{offset: 0, path: {path: "/file"}}'