Align and improve Portmapping versions Step 1

Align and improve Portmapping versions Step 1

- add FIXME comments to warn about code duplications at the beginning
  of the classes
- minor improvements and alignment over the 3 classes
- remove a useless argument from createNodeInfo versions 2.2.1 and 7.1.0
- point with a TODO comment in the version 1.2.1 createNodeInfo method
  the difference of protection there with the 2 other versions

JIRA: TRNSPRTPCE-353
Signed-off-by: guillaume.lambert <guillaume.lambert@orange.com>
Change-Id: I72ff9f05ca51caecb8ec41b6d2f666c6bf50ccbd