Working groups iterator, needs frontend work

django_project/myapp/templates/myapp/base.html

django_project/myapp/templates/myapp/group_create.html

django_project/myapp/templates/myapp/group_list.html

django_project/myapp/views/groupviews.py

rust_crud_api/src/db/groups.rs

rust_crud_api/src/db/init.rs

rust_crud_api/src/models/group.rs