Add wifi support for ROS 7.13+ devices without a physical wifi radio

[mvn23]

Proposed change

My CCR2004 has no physical wifi radio, but can manage CAPs through the wifi menu. Since ROS 7.13, this is no longer a separate package (only routeros is listed under packages). With this PR, we add support for this scenario by disabling capsman and setting the _wifimodule to wifi if we're running on ROS 7.13 or later.

Type of change

• [x] Bugfix
• [ ] New feature
• [ ] Code quality improvements to existing code or addition of tests
• [ ] Documentation

Additional information

Note: The code was not formatted with black as that would have resulted in a lot of unrelated changes.

Checklist

• [x] The code change is tested and works locally.
• [ ] The code has been formatted using Black.
• [ ] Tests have been added to verify that the new code works.
• [ ] Documentation added/updated if required.