Implement a slow sigma-delta modulation based output (#4132)

tests/test3.yaml

@@ -1313,6 +1313,21 @@ output:
       return {s};
     outputs:
       - id: custom_binary
+  - platform: sigma_delta_output
+    id: sddac
+    update_interval: 60s
+    pin: D4
+    turn_on_action:
+      then:
+        - logger.log: "Turned on"
+    turn_off_action:
+      then:
+        - logger.log: "Turned off"
+    state_change_action:
+      then:
+        - logger.log:
+            format: "Changed state: %d"
+            args: [ 'state' ]
   - platform: custom
     type: float
     lambda: |-