New structure and documentation. - Optional blockage deficit models a…

…nd implementation of the SelfSimilarity model - Optional wake deflection models and implementation of a model by Jimenez

Last version before version 2.0.0

- New structure and documentation.

- Optional blockage deficit models and implementation of the SelfSimilarity model
- Optional wake deflection models and implementation of a model by Jimenez

ready for end of 2019 workshop

Ready for workshop

add iea37 and fuga data files to pypi

exercises

Update README.md

Update .gitlab-ci.yml

Update .gitlab-ci.yml