Automatically reload config every seconds (disabled by default) (#86)

* Automatically reload config every seconds (disabld by default)

* add that

pgcat.toml

@@ -29,6 +29,9 @@ healthcheck_timeout = 1000
 # For how long to ban a server if it fails a health check (seconds).
 ban_time = 60 # Seconds
 
+# Reload config automatically if it changes.
+autoreload = false
+
 #
 # User to use for authentication against the server.
 [user]