* core: start migrating to flows for authorisation
* sources/oauth: start type-hinting
* core: create default user
* core: only show user delete button if an unenrollment flow exists
* flows: Correctly check initial policies on flow with context
* policies: add more verbosity to engine
* sources/oauth: migrate to flows
* sources/oauth: fix typing errors
* flows: add more tests
* sources/oauth: start implementing unittests
* sources/ldap: add option to disable user sync, move connection init to model
* sources/ldap: re-add default PropertyMappings
* providers/saml: re-add default PropertyMappings
* admin: fix missing stage count
* stages/identification: fix sources not being shown
* crypto: fix being unable to save with private key
* crypto: re-add default self-signed keypair
* policies: rewrite cache_key to prevent wrong cache
* sources/saml: migrate to flows for auth and enrollment
* stages/consent: add new stage
* admin: fix PropertyMapping widget not rendering properly
* core: provider.authorization_flow is mandatory
* flows: add support for "autosubmit" attribute on form
* flows: add InMemoryStage for dynamic stages
* flows: optionally allow empty flows from FlowPlanner
* providers/saml: update to authorization_flow
* sources/*: fix flow executor URL
* flows: fix pylint error
* flows: wrap responses in JSON object to easily handle redirects
* flow: dont cache plan's context
* providers/oauth: rewrite OAuth2 Provider to use flows
* providers/*: update docstrings of models
* core: fix forms not passing help_text through safe
* flows: fix HttpResponses not being converted to JSON
* providers/oidc: rewrite to use flows
* flows: fix linting
* policies/expression: migrate to raw python instead of jinja2
* lib/expression: create base evaluator, custom subclass for policies
* core: rewrite propertymappings to use python
* providers/saml: update to new PropertyMappings
* sources/ldap: update to new PropertyMappings
* docs: update docs for new propertymappings
* root: remove jinja2
* root: re-add jinja to lock file as its implicitly required
default_context can be used to influence policies during the planning. This should be used when the Planner is called from other views to correctly preseed the plan.
This also checks if there is a PENDING_USER set, and uses that user for the cache key instead
