add base documentation

Documentation/.gitignore

Documentation/README.md

Documentation/docs/api/get_user_info.md

Documentation/docs/api/index.md

Documentation/docs/api/user_connect.md

Documentation/docs/api/user_create.md

Documentation/docs/frontend/angular.md

Documentation/docs/frontend/babylonjs.md

Documentation/docs/frontend/firebase.md

Documentation/docs/frontend/functionning.md

Documentation/docs/frontend/img/dashboard-page.png

Documentation/docs/frontend/img/home-project-page.png

Documentation/docs/frontend/img/img-storage.png

Documentation/docs/frontend/img/page-structure.png

Documentation/docs/frontend/img/process-structure.png

Documentation/docs/frontend/img/projet-structure.png

Documentation/docs/frontend/img/structure-database.png

Documentation/docs/frontend/img/visu-babylon.png

Documentation/docs/frontend/index.md

Documentation/docs/frontend/ionic.md