Suggest game engine tags

[prostagma-fp]

Is your feature request related to a problem? Please describe. Many games end untagged with game engine tags, and there is no current solution on FPFSS for a tester/verifier to change metadata without being unable to approve the submission.

Describe the solution you'd like If the launcher detects filenames in the content folder such as c2runtime.js, a message in the curation's Warning tabs will say something on the lines of "Curation probably made in {{game_engine}}; did you forget to tag it?"

Describe alternatives you've considered Leaving that job to FPFSS

Additional context Could be probably made as an extension.

[colin969]

Will be suitable for extensions in the curate rewrite