chore(place/logic_example): add webhook handler

Author: stakach

drivers/place/logic_example.cr

@@ -15,10 +15,16 @@ class Place::LogicExample < PlaceOS::Driver
     main_lcd[:power]
   end
 
-  def power(state : Bool = true)
+  def power(state : Bool)
     system.all(:Display).power(state)
   end
 
+  def webhook(method : String, headers : Hash(String, Array(String)), body : String)
+    logger.debug { "webhook executed" }
+    power(true)
+    {HTTP::Status::OK.to_i, {} of String => String, ""}
+  end
+
   def display_count
     system.count(:Display)
   end