Add djangoldp_crypto app

.gitlab-ci.yml

djangoldp_crypto/README.md

djangoldp_crypto/__init__.py

djangoldp_crypto/admin.py

djangoldp_crypto/management/__init__.py

djangoldp_crypto/management/commands/__init__.py

djangoldp_crypto/management/commands/creatersakey.py

djangoldp_crypto/migrations/0001_initial.py

djangoldp_crypto/migrations/__init__.py

djangoldp_crypto/models.py

djangoldp_crypto/tests/runner.py

djangoldp_crypto/tests/settings_default.py

djangoldp_crypto/tests/tests_rsakey.py

setup.cfg