UserRole to enums (#18)

Author: lumburovskalina

enums/enums.ts

@@ -58,4 +58,10 @@ export enum IntegrationType {
     GITHUB_ISSUE = 'GITHUB_ISSUE',
     GITHUB_FILE = 'GITHUB_FILE',
     SHAREPOINT = 'SHAREPOINT',
-}
+}
+
+export enum UserRole {
+    ENGINEER = "ENGINEER",
+    EXPERT = "EXPERT",
+    ANNOTATOR = "ANNOTATOR",
+}