feat: adding apps.py to ccx app

lms/djangoapps/ccx/apps.py

@@ -0,0 +1,18 @@
+"""
+LMS CCX application configuration
+Signal handlers are connected here.
+"""
+from django.apps import AppConfig
+
+
+class CCXConfig(AppConfig):
+    """
+    Application Configuration for CCX.
+    """
+    name = 'lms.djangoapps.ccx'
+
+    def ready(self):
+        """
+        Connect signal handlers.
+        """
+        from . import tasks # pylint: disable=unused-import