Fix for : Same class name in different namespaces

[ChrisPulman]

What kind of change does this PR introduce?

Fixes #131

What is the current behavior?

Generated file does not use namespaces for file name

What is the new behavior?

Generated file uses namespaces for file name as per V1.1.31

What might this PR break?

None expected

Please check if the PR fulfills these requirements

• [x] Tests for the changes have been added (for bug fixes / features)
• [ ] Docs have been added / updated (for bug fixes / features)

Other information: