- Introduce PhasedArrayModel
- Use the new PhasedArrayModel framework across modules (e.g., 3gpp channel model)
- Improve Angles class. Furthermore, Angles has been translated from elevation to inclination and from degrees to radians
- Update antenna module doc
- Fix random angle generation for the 3gpp channel model. Specifically, cluster and sub-cluster angles might be generated with inclination angles outside the inclination range [0, pi], and have now been fixed.