This ensures that all feature flags are explicitly
used, and have a unique meaning.

This work does:
- hide `licensed` from `bin/feature-flag`
- discovers the feature flag names to collide with licensed feature
  names
- disallows to use licensed names in feature flag API
  (unless `force=1`)
- removes mentions about implicit feature flags

This does not:
- remove implicit feature flag check
- the removal of implicit feature flag will be done at some point later

This makes:

- `licensed` flags to be `ee-only`
- ensure that resulting YAML is always ordered

Our implicit licensed features are YAML stored.

This does:
- extend `issue_url` with `template`
- asks for `introduced_by_url`

Do not ask for type if it is only one.

The `bin/` scripts do define `Options`.
Move the `Options` into `*Parser` class
to avoid conflicting definitions

Add bin feature flag (RUN AS-IF-FOSS)

See merge request gitlab-org/gitlab!35540

(cherry picked from commit 82b09ab5)

388079df Add `bin/feature-flag` script
1432ee17 Apply 1 suggestion(s) to 1 file(s)

This reverts merge request !35540

This helps with creating a new
feature flag in repository
by asking a bunch of questions
to put into the YAML definition