feat: separate files, basic gpio util prep, config parsing

config.yml

@@ -5,3 +5,12 @@ mqtt:
   authentication: true
   password: "234"
   user: "mqtt"
+
+# TODO: Consider adding an auto-off setting for out mode
+# Add default setting (also only for out)
+topics:
+  - topic: ""
+    pin: 0
+    mode: "in"
+
+pollInterval: 100