Bug 455630: CsvHelper should encode texts containing the line separator
(optionally) 

Change-Id: I722693cf508178fb691b67d0a3d41cf49d2c30da
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=455630
Reviewed-on: https://git.eclipse.org/r/38535
Tested-by: Hudson CI
Reviewed-by: Oli Schmid <oliver.schmid@bsiag.com>
(cherry picked from commit 41367db8994ebdb317cd470d75021e8f3697416b)
Reviewed-on: https://git.eclipse.org/r/38539
Reviewed-by: Stephan Merkli <sme@bsiag.com>