feat(api): API specification v2.9

* Schema is now using OpenAPI 3.0.2 (previous schemas were using OpenAPI 2)
* feat(scores): New metadata and update of `GET/PUT /v2/scores/{score}`:
  * `arranger` property has been added
  * `plays` statistics are now returned (`ScorePlaysCounts`)
* feat(scores): New `now` proprty on the `DELETE` method to schedule a deletion to be executed shortly (avoid keeping in trash)
* feat(edu): Attachments (`MediaAttachment` and `ClassAttachmentCreation`) have new type `googleDrive` for attached Drive file, and a new `googleDriveFileId` property. If the attachment is a `googleDrive` item, the `iconUrl` and `mimeType` properties are also returned
* feat(edu): Add `microsoftGraph` info to `ClassDetails` (e.g. `GET /v2/classes` and `GET /v2/classes/{class}`)
* feat(account): Add `firstname` and `lastname` properties for education accounts

Author: gierschv

Diff for: .gitlab-ci.yml

@@ -0,0 +1,10 @@
+pages:
+  script:
+    - npm install -d
+    - npm run build
+    - mv web_deploy public
+  artifacts:
+    paths:
+      - public
+  only:
+    - master

Diff for: package.json

@@ -1,6 +1,6 @@
 {
   "name": "@flat/api-reference",
-  "version": "2.7.0",
+  "version": "2.9.0",
   "dependencies": {
     "bower": "^1.7.7",
     "connect": "^3.4.1",