* Add virtualization field fo system info
* Add ntp sync and host connectivity
* Prevent nonetype errors
* Add supervisor_connectivity and fix tests
* Add mock of network info to other fixtures
* Update more fixtures with network/info mock
* Add diagnostics platform to the Supervisor integration
* Apply suggestions from code review
Co-authored-by: Martin Hjelmare <marhje52@gmail.com>
Co-authored-by: Martin Hjelmare <marhje52@gmail.com>