Adds support for ACL Roles and Service Identities CRUD, along with necessary changes to Tokens, and the CSS improvements required.
Also includes refinements/improvements for easier testing of deeply nested components.
1. ember-data adapter/serializer/model triplet for Roles
2. repository, form/validations and searching filter for Roles
3. Moves potentially, repeated, or soon to to repeated functionality
into a mixin (mainly for 'many policy' relationships)
4. A few styling tweaks for little edge cases around roles
5. Router additions, Route, Controller and templates for Roles
Also see:
* UI: ACL Roles cont. plus Service Identities (#5661 and #5720)
1. If the modal gets bigger than 80% of the viewport height a scrollbar
will be shown. Currently there isn't anywhere it can get this big, but
future work involves possible larger modals
2. Usually its difficult to figure out which was the 'unchecked' radio
button using an onchange event. Luckily ember/handlebars changes its
properties after the onchange event, so knowing that and using an extra
data-checked attribute set via ember, we can figure out which radio
button has been 'unchecked'. This means the logic for opening an
closing modals becomes slightly easier
