Appending arguments to usage
Using banner instead of argument name.

Creating table of arguments to display in the usage instructions.
Test for adding the namespace in the Generator options.
Using name instead of banner, since banner provides examples for types other than String, e.g. ‘one two three’ for arrays.
Fixed unit test
Checking for additional argument descriptions in the usage.
Added namespace, since the namespace is added as part of the env.create function now.