Bug fixing merge

See merge request !47

#35 Remove data from tutorials, clean code, debug and test all tutorials

See merge request !46

Create functions to_shapefile and from_shapefile

See merge request !45

# Conflicts:
#   nes/nc_projections/default_nes.py

Horiz Interp: Changed the method to convert lat_lon to cartesian. Now providentia interpolation and NES uses the same one. Previous method provides slight differences between machines (Nord3v2 vs MN4) and that one produces exactly the same values.

Dev 18 checks

See merge request !44

Develop 31 cmas ra

See merge request !42

Update tutorials for Port Barcelona and CSIC

See merge request !40

Add CSIC example

See merge request !39

Solved bug on Vertical interpolation when order of new levels is different from the old ones (ascendant vs descendant)

BDRC improvements

See merge request !38

- Added sum_axis function
- Modified grib2 function

Develop 13 selecting function

See merge request !37