Started the style guide fixes for the ngsi library
ngsi library 100% style guide
Merge pull request #536 from telefonicaid/hardening/style_guide_in_orionTypes_lib

Hardening/style guide in orion types lib
Merge branch 'release/iotplatform-v1' into hardening/style_guide_in_ngsi_lib
merged with origin and develop
Merge pull request #546 from telefonicaid/hardening/style_guide_in_ngsi_lib

Hardening/style guide in ngsi lib