Olivaw

In this release:

* the documentation has been updated
* the documentation command `olivaw -h` or `olivaw --help` have been implemented
* pre-commit event hook types have been updated
* github actions metadata have been updated

* add test checking proper use of rdfs:subClassOf and rdfs:isDefinedBy predicates
* representing the assertor as a testing activity using [Prov-O](https://www.w3.org/TR/prov-o/) ontology
* modifying the markdown report assertor chapter to display all the new assertor available knowledge
* simplifying GitHub Composite Actions signature and implementing a cache system to store python environments (works at branch scale)

tests:
* model tests (with custom tests feature)
* data tests (with custom tests feature)
* query tests

connectors:
* cli (pip package)
* actions (init-branch & test-actions)
* pre-commit (olivaw-test hook)