added error messages for malformed and missing key in .harmony file to fix issue #168

[avvalenx]

Please let me know if any more information is needed

[skorper]

Thank you so much for your contribution, @avvalenx ! Can you add a new entry to the Unreleased section of the changelog describing your changes?

[avvalenx]

You're welcome @skorper! I added the changes to the unreleased section of the changelog. Please let me know if anything else is needed or if this was done incorrectly. Thank you.

[skorper]

@avvalenx Looks great, thank you! There is a conflict now, can you resolve that before I merge? Thanks again!

[avvalenx]

Yes conflict is resolved @skorper

[avvalenx]

@skorper what happened with these checks? Is this something I did wrong? I pulled from the main branch instead of development would that have an effect? Let me know if there is anything I can do to assist.

[skorper]

@avvalenx I think the build is failing because the secrets needed to run the regression tests are not present in your fork. I will go ahead and merge without the regression tests passing, since it's a simple enough change. Thanks again for your contribution!