Major changes to clean up the API.
StackConformal into a single class
Stack with runtime-separation of the conformal or fourier logic. This does not seem to affect performance in any measurable way. It allows to simplify the python API, since bindings for only 1 instead of 2 classes are needed.
Modelnow inherits from
Stackto expose all functions with bindings.
Modefinderno longer inherits from
Modeland uses composition instead.
- found modes will be normalized in units of inverse wavelength
- some smaller changes