OAuth 'push' and 'admin' scopes support

Required for "Login with PleromaFE" feature of AdminFE: admin-fe!69 (merged)

Also, per admin-fe!69 (comment 47505), admin scope would be required for moderation features of PleromaFE.

BE feature: pleroma!2025 (merged)

mentioned in merge request admin-fe!69 (merged)

changed title from Added OAuth 'push' and 'admin' scopes to OAuth 'push' and 'admin' scopes support

changed the description

mentioned in merge request pleroma!2025 (merged)

@rinpatch BE MR was merged, please merge this one.

will it work on older BEs tho?

@hj it surely would work with older BEs, even if those BEs aren't aware of admin / push scopes. Client apps may request any number of arbitrarily named scopes, e.g. "scope1", "scope2", "scope3", and it won't do anything (neither good or bad) until BE starts making any difference basing on any of these actions absence / presence in any of its controller actions.

merged

mentioned in commit 96cab6d8

mentioned in merge request pleroma!2055 (merged)

mentioned in commit b3992358

mentioned in merge request !1032 (merged)

mentioned in merge request pleroma!2061 (merged)