Feature Request: support platform and test suite names as variables in kitchen.yml for reporter output file names

[luckeyca]

This is a feature with kitchen-inspec which kitchen terraform doesn't supports it yet. kitchen-inspec document is here: https://github.com/inspec/kitchen-inspec#custom-outputs.
The code I think it's here: https://github.com/inspec/kitchen-inspec/blob/main/lib/kitchen/verifier/inspec.rb#L278

This feature is useful given it allows different report files for different platform/suite combinations to be configured globally under verifier section. As is right now, to set different output file names for different test suite, we have to hard code each file under each test suite