Make 'conda_upload' dependent of 'conda_build' job only.

Fix conda_upload job

See merge request !4

Improve lpy_tools

See merge request !3

integrated modification that make it possible to customize labelDictionary with a user-defined function

modified model_1.lpy to illustrate this point and define a unique label for each plant axis.

To include `examples` & `tests`

# Conflicts:
#	README.md
#	src/lpy_tools/point_sampler/generatePointCloud.py
#	src/lpy_tools/point_sampler/scan_utils.py

Add conda packaging

See merge request !2

 - pages: build & publish documentation
 - conda_build: build conda packages for linux & convert it for macos & windows
 - conda_upload: upload built packages