We may already have an existing network or subnet. This commit ensures we don't raise an error in this case. e.g: https://app.shippable.com/github/ansible/ansible/runs/143559/145/tests
* Add hcloud network facts * Add tests * Rename fact to info, adjust tests * Fix style * Fix test * Fix typo * Adjust test * Adjust test * Rename subnets to subnetworks * Adjustments * Apply suggestions from code review Co-Authored-By: Lukas Kämmerling <4281581+LKaemmerling@users.noreply.github.com>