Clarify "namespace" within "generate-entities" about canari

[allfro]

Hi @cmlh

The namespace is not the unique type name. Let me clarify with an example. Take maltego.IPv4Address for instance. The unique type name is maltego.IPv4Address however the namespace is maltego. To be specific, the namespace is everything before the last dot of the unique type name and also corresponds to the _namespace_ class variable in your canari entity definitions. The -n parameter was implemented so that you can generate entities only for the entities you've authored or are targeting in your transform package. If you want to generate an entity definition for the unique type name, then you should use the -E parameter instead.