Merge pull request #562 from isartcanyameres/feature/vnmapper

Small vnmapper test refactor.
Capability and method renamed to VNMapping-mapVN.
Merge pull request #563 from adrian-rosello/feature/vnmapper

Capability and method renamed to VNMapping-mapVN.
Added tests with capacity (sample 7 and 8) and feature to read capacity from xml in VNTRequest.

- Sample7 is working fine.
- Sample8 is failing because current output does not match expected one.
Node mapping is different than expected and links are too.
Expectd output is stored in output.karaf file.
Current output is stored in output_current.karaf file.

Outputs are not displaying capacities, by now.