GitlabRoutes => Add some routes

types/Gitlab/GitlabRoutes.ts

 enum GitlabRoutes {
-    NOTIFICATION_SETTINGS  = '/notification_settings',
-    USERS_GET              = '/users',
-    REPOSITORY_GET         = '/projects/{{id}}',
-    REPOSITORY_CREATE      = '/projects',
-    REPOSITORY_EDIT        = '/projects/{{id}}',
-    REPOSITORY_FORK        = '/projects/{{id}}/fork',
-    REPOSITORY_MEMBER_ADD  = '/projects/{{id}}/members',
-    REPOSITORY_MEMBERS_GET = '/projects/{{id}}/members/all'
+    NOTIFICATION_SETTINGS       = '/notification_settings',
+    USERS_GET                   = '/users',
+    REPOSITORY_GET              = '/projects/{{id}}',
+    REPOSITORY_CREATE           = '/projects',
+    REPOSITORY_EDIT             = '/projects/{{id}}',
+    REPOSITORY_FORK             = '/projects/{{id}}/fork',
+    REPOSITORY_MEMBER_ADD       = '/projects/{{id}}/members',
+    REPOSITORY_MEMBERS_GET      = '/projects/{{id}}/members/all',
+    REPOSITORY_VARIABLES_ADD    = '/projects/{{id}}/variables',
+    REPOSITORY_BRANCHES_PROTECT = '/projects/{{id}}/protected_branches'
 }