[1390][cygnus-ngsi][cygnus-ngsi/README.md] Add features to list
[1390][cygnus-ngsi][cygnus-ngsi/README.md] Add features to list

Fiware/context.Cygnus,Fiware/data.Cygnus,telefonicaid/fiware-cygnus,Fiware/data.Cygnus,telefonicaid/fiware-cygnus,telefonicaid/fiware-cygnus,Fiware/context.Cygnus,telefonicaid/fiware-cygnus,Fiware/context.Cygnus,Fiware/data.Cygnus,Fiware/context.Cygnus