Update .gitlab-ci.yml file : test running unittest in build stage to see if this solves the issue with finding the module.

Resolve "python needs a proper installation scheme, properly documented"

Closes #37

See merge request Galaxies/LEPHARE!41

# Conflicts:
#   .gitignore

Add the VERBOSE option to avoid the display of the Id for every source and template, in mag_gal and zphota

bundle in the module the pybind11 library and the native python files; set long_description to use the README.md content

Minor bug: modifiy to use more than 128 bands. Use only one value for ERR_SCALE. Be careful at the extreme z limits for limits

Add changes by Johann