added multiple listener, socket and tcp

config_example.yaml

@@ -0,0 +1,17 @@
+logging:
+  level: DEBUG
+
+parser:
+  worker: 6
+
+steam:
+  username: steamuser
+  api_key: apikey
+  rate_per_sec: 1
+
+httpd:
+  cors_allow_domains: '*'
+  listen:
+    - host: localhost
+      port: 8000
+    - socket: /tmp/csgowtf.sock