RFC: Restructure repository

Fixes #78 (closed)

I did some additional (big) restructuring of the repository, which should be hopefully the last one before we release 1.0. If you want to check the structure it probably makes sense to not look at the difference but checkout the branch directly. Please also take a look at the structure of the docs. I mainly worked on the File structure and the Docs.

File structure

There are now mainly three folders

1. modules
2. core
3. lib

modules

Contains the classes for the analysis. All functions have been moved to lib. I also renamed epsilon.py to dielectric.py and also its modules to DielectricPlanar and DielectricCylinder to be consistent with DielectricSpectrum.

core

Contains base classes for building the modules split into three files: base, planar, cylinder

lib

Contains additional functions. The folders contains math for functions like fourier trafo, weights for the weighting functions, tables for the tables and util everything else.

Docs

The docs now contain an additional entry for the api reference which is what is provided by core and lib. I also fixed the issue that parameters of the classes are not shown.

TODOs

• doc generation still generates many warnings
• fix the tests

I apologize for the commit mess. I started with the work before we merged the last two commits. However, when we squash merge the whole thing is will be okay.