Refs #12636. Add doc. Add unit tests. Fix some bugs with 'single tick'...

Refs #12636. Add doc. Add unit tests. Fix some bugs with 'single tick' replacement. New: double ticks in attributes are replaced by ''' - this guarantees that there are no more single ticks saved and the code is valid to be reused as variable inside QFQ Report.
3 jobs for F12636InputSingleTickEncode in 4 minutes and 10 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #9151
snapshot

00:03:01

 
  Selenium
passed #9154
selenium

00:01:09

failed #9152
selenium

00:01:31