Separate Wavefront Functionality into Its Own Package

[ramezquitao]

The wavefront subpackage should not be part of the basic pyOpTools. The core pyOpTools package should focus solely on geometrical ray tracing.

To address this:

• The wavefront functionality should be moved into a separate package that may depend on the basic pyOpTools.
• This separation will keep the core pyOpTools package lightweight and specialized, while allowing the wavefront functionality to evolve independently.

This change will help maintain a clear separation of concerns and improve maintainability for both packages.