Log additional details to mc_cmd_center.log

Restart log file with each new game or append keeping previous messages

If enabled, the first time a LE happens in the current zone, a notification will be shown. No other notifications will be shown until the player changes to another zone or does something else to trigger the current lot to reload. If disabled, a notification will be shown every time an exception occurs. Note that mc_cmd_center.log errors will still show for each error that occurs