Added ability for OneService to monitor local.conf for changes and automatically reload

node/Constants.hpp

@@ -275,6 +275,11 @@
  */
 #define ZT_PING_CHECK_INVERVAL 5000
 
+/**
+ * How often the local.conf file is checked for changes
+ */
+#define ZT_LOCAL_CONF_FILE_CHECK_INTERVAL 10000
+
 /**
  * How frequently to check for changes to the system's network interfaces. When
  * the service decides to use this constant it's because we want to react more