Release 1.1

Feature/gestion client (#17)

* feat(gestion-client): add class to deserialize json files and add them to the db

* feat(gestion-clients): add class to handle Clients Endpoints

* feat(Gestion-clients): add template for the db

* feat: update gitignore to include .db file and Migrations Folder

* feat: add Swagger

* refactor: change annotations