Support for json log files

[Peter-Optiway]

Any chance you could add support for json logs Example:

{ "time": "2018-04-05 14:41:24.4791", "level": "INFO", "thread": "15 ", "message": "Request received (\"DB\", \"Save\")", "module": "DB", "method": "Save" }
{ "time": "2018-04-05 14:41:24.4986", "level": "INFO", "thread": "4 ", "message": "Request received (\"DB\", \"GetAll\")", "module": "DB", "method": "GetAll" }
{ "time": "2018-04-05 14:41:24.4986", "level": "INFO", "thread": "13 ", "message": "it took 12,2139 ms to write to disk", "elapsedMilliseconds": 12.2139 }

(Generated by NLog structured logging)