Merge branch 'mr/exsyslogger-doc-and-format' into 'develop'

Adds a couple examples to docs/config.md for ExSyslogger and removes duplicate timestamps from default format.

See merge request !784
2 jobs for develop in 3 minutes and 42 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Lint
passed #15863
lint

00:01:10

 
  Test
passed #15864
unit-testing

00:02:31