Asset generation test cases added to CI

[dymurray]

This issue is tracking a contribution to kantra-cli-tests to add coverage for asset generation.

Test cases added at a minimum:

• Generation of helm chart from a CF manifest file
• Negative testing of CF manifest file format
• ?

[konveyor-ci-bot]

This issue is currently awaiting triage.
If contributors determine this is a relevant issue, they will accept it by applying the triage/accepted label and provide further guidance.
The triage/accepted label can be added by org members.

[dymurray]

konveyor-ecosystem/kantra-cli-tests#83