Feature 7184 New Generation RO enhancemnt

- Adding ssh-key injection
- Adding parameter instantiation to NG-RO
- Removing for NG-RO vim creation and edition
- Autodetect if it is old RO or new generatio RO
- Provide cloud init text for new generatio RO
- scaling for new generation RO
- Adding sdn creation info at new generation RO

Change-Id: I322c2a8989b58e89ad981926f11cfdd3e630b75a
Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>