feat(standard filtering, tweaks): REST Api and other

* Filtering on client request should now be performed with the standard `?attr=...` syntaxe
* Frontend updated for this new syntaxe
* Backend and frontend documentation updated with new changes
* Updated the location of the the api documentation to `/api-doc`
* Fixed bug preventing api-doc to render
* backend python requirements updated
* Updated dockerfile / docker-compose to make sure we wait for the db

Fixes #97 #80
6 jobs for !82 with fix/betterREST in 5 minutes and 24 seconds (queued for 2 seconds)
merge request