Improve root namespace definition for templates #6010
Description
Is your feature request related to a problem? Please describe.
Feature request
Describe the solution you'd like.
- Classes are generated with the same namespace as their containing project name but with additional segments added for any subfolders from the directory containing the project file to the class file)
- Classes are generated with the same namespace as their containing project name unless root namespace is specified in the project file addition additional segments to the namespace for each folder
Based on Consider adding a class item template #1713
Additional context
No response