Add basic configuration for Python development

[LaRiffle]

Fixes

Fixes #12

Description

I added the standard Python config file (based on Poetry, beware), together with a minimal README

I have added the GitHub actions for linting, testing and beta project management.

To test the test action, a unit test for covariance as been added.

NB : for some obscure reason I had to put back all the __init__ files to have the test action run

Definition of Done

• [x] I followed the Arkhn Code Book (I swear!).
• [x] I have written tests for the code I added or updated.
• [x] I have updated the documentation according to my changes.
• [x] I have updated the deployment configuration if needed.

[github-actions[bot]]

ai-template coverage report

File	Stmts	Miss	Cover	Missing
inst/python/dp/custom_dp
covariance_custom.py	31	1	97%	35
inst/python/dp/pydp_wrapper
count_PyDP.py	4	4	0%	1–6
max_PyDP.py	4	4	0%	1–6
mean_PyDP.py	4	4	0%	1–8
median_PyDP.py	4	4	0%	1–6
min_PyDP.py	4	4	0%	1–6
standard_deviation_PyDP.py	4	4	0%	1–8
sum_PyDP.py	4	4	0%	1–6
variance_PyDP.py	4	4	0%	1–8
TOTAL	63	33	48%

Tests	Skipped	Failures	Errors	Time
3	0 :zzz:	0 :x:	0 :fire:	0.384s :stopwatch:

[github-actions[bot]]

ai-template coverage report

File	Stmts	Miss	Cover	Missing
inst/python/dp/custom_dp
covariance_custom.py	31	1	97%	35
inst/python/dp/pydp_wrapper
count_PyDP.py	4	4	0%	1–6
max_PyDP.py	4	4	0%	1–6
mean_PyDP.py	4	4	0%	1–8
median_PyDP.py	4	4	0%	1–6
min_PyDP.py	4	4	0%	1–6
standard_deviation_PyDP.py	4	4	0%	1–8
sum_PyDP.py	4	4	0%	1–6
variance_PyDP.py	4	4	0%	1–8
TOTAL	63	33	48%

Tests	Skipped	Failures	Errors	Time
3	0 :zzz:	0 :x:	0 :fire:	0.424s :stopwatch:

[github-actions[bot]]

ai-template coverage report

File	Stmts	Miss	Cover	Missing
inst/python/dp/custom_dp
covariance_custom.py	31	1	97%	35
inst/python/dp/pydp_wrapper
count_PyDP.py	4	4	0%	1–6
max_PyDP.py	4	4	0%	1–6
mean_PyDP.py	4	4	0%	1–8
median_PyDP.py	4	4	0%	1–6
min_PyDP.py	4	4	0%	1–6
standard_deviation_PyDP.py	4	4	0%	1–8
sum_PyDP.py	4	4	0%	1–6
variance_PyDP.py	4	4	0%	1–8
TOTAL	63	33	48%

Tests	Skipped	Failures	Errors	Time
3	0 :zzz:	0 :x:	0 :fire:	0.379s :stopwatch: