Restructure and add HTTP API

- Move check_action and run_action into actions.py
- Add HTTP API
- Minor formatting changes

http_api.py

@@ -0,0 +1,15 @@
+#!/usr/bin/python3
+import hassapi as hass
+from actions import run_action
+
+class HttpApi(hass.Hass):
+    def initialize(self):
+        self.register_endpoint(self.api_request, '4button')
+
+    def api_request(self, data, kwargs):
+        if 'sequence' not in data: return 'Missing sequence', 400
+        # Let AppDaemon handle API response on error
+        if (run_action(self,data['sequence'])):
+            return 'Success', 200
+        else:
+            return 'No match', 400