C2INAV — Add notes to the navigation_report_kind_type in the IDL/DDS PSM enum literals

To be clear on the meaning notes/comments should be added to each of the literals of navigation_report_kind_type in the IDL/DDS PSM (implementation is PSM specific).

Add notes to the literals

Due to need to also reference the keys for specialised topics the relevant enumeration in the PSM mapping is now navigation_report_key_kind_type. The class navigation_report_kind_type is now a struct with an attribute of this enumeration.

A note of the form
"The literal for referencing the

specialisation of navigation_report_type." to each attribute