Validate strings and arrays for size

[tylerjw]

Signed-off-by: Tyler Weaver tyler@picknik.ai

[pac48]

I am getting this error when I run the test

terminate called after throwing an instance of 'rclcpp::exceptions::InvalidParameterValueException'
  what():  Invalid value set during initialization for parameter 'gravity_compensation.CoG.pos': Invalid length '3' for parameter 'gravity_compensation.CoG.pos'. Required greater than: 3
[ros2run]: Aborted

[tylerjw]

Thank you for running the test, I fixed the logic error.

I should turn running that node into an integration test.