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.
Merge pull request #564 from isartcanyameres/feature/vnmapper

Added tests with capacity (sample 7 and 8) and feature to read capacity ...
Set Global.PNodeChoice = 1 in vnmapper.
Add tests overloading capacity in vnmapper.
Merge pull request #565 from isartcanyameres/feature/vnmapper

Added tests overloading capacity in vnmapper and fix a test
Global class as a singleton. Static methods moved to a MapperHelper.