Group migrations (#8528)

* Added create group migration

* Add migration for unlimited group subscription

* Add migration to update group members with group plans

* Added error catch

* Added comments

migrations/groups/create-group.js

@@ -0,0 +1,32 @@
+import Bluebird from 'bluebird';
+
+import { model as Group } from '../../website/server/models/group';
+import { model as User } from '../../website/server/models/user';
+
+// @TODO: this should probably be a GroupManager library method
+async function createGroup (name, privacy, type, leaderId) {
+    let user = await User.findById(leaderId);
+    
+    let group = new Group({
+        name,
+        privacy,
+        type,
+    });
+
+    group.leader = user._id;
+    user.guilds.push(group._id);
+
+    return Bluebird.all([group.save(), user.save()]);
+};
+
+module.exports = async function groupCreator () {
+    let name = process.argv[2];
+    let privacy = process.argv[3];
+    let type = process.argv[4];
+    let leaderId  = process.argv[5];
+
+    let result = await createGroup(name, privacy, type, leaderId)
+};
+
+
+