* [BAEL-4720] Java File.separator vs File.pathSeparator
Removed src code and modified junit tests
* [BAEL-4720] Java File.separator vs File.pathSeparator
Code formatting: Removed extra spaces in the code
* [BAEL-4720] Java File.separator vs File.pathSeparator
Added more junit tests
* [BAEL-4720] Java File.separator vs File.pathSeparator
Added new module core-java-io4 and moved the code from core-java-io3 module.
Co-authored-by: MeenaGawande <MeenaGawande@users.noreply.github.com>