Logger: Add support for toggling sub logger name output for log events (#407)

* Adds new optional log field. Adds padding to the fields to make it have a consistent output

* Line space and correct err message

* Removes padding code

* Moves `ShowLogSystemName` to advanced settings

* Uppers the names. Prevents pointer crash. Adds to config_example.json

* Adds test scenario for nil and true ShowLogSystemName

* buffer reset

config_example.json

@@ -25,6 +25,7 @@
    "maxsize": 250
   },
   "advancedSettings": {
+   "showLogSystemName": false,
    "spacer": " | ",
    "timeStampFormat": "02/01/2006 15:04:05",
    "headers": {