implement queue for channel helper

bots/migrations/0008_auto_20191124_1922.py

@@ -0,0 +1,32 @@
+# Generated by Django 2.1.5 on 2019-11-24 16:22
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('bots', '0007_auto_20191116_0314'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='QueuedItem',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('type', models.CharField(max_length=12)),
+                ('args', models.TextField()),
+            ],
+        ),
+        migrations.AddField(
+            model_name='channelhelperbotmoduleconfig',
+            name='queued',
+            field=models.BooleanField(default=False),
+        ),
+        migrations.AddField(
+            model_name='queueditem',
+            name='config',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='queued_items', to='bots.ChannelHelperBotModuleConfig'),
+        ),
+    ]