use case insensitive matching for http request header keys

[istyf]

Proposed changes

This PR fixes #1226 by replacing strcmp with strcasecmp for the four request headers Orionld-Legacy, Performance, NGSILD-Scope and Accept.

Types of changes

What types of changes does your code introduce to the project: Put an x in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

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Further comments

I should have added a test for this, but I don't have the correct toolchain setup currently, and wanted to get the issue and PR posted as soon as possible in case there are others that get affected by this.

I have read the CLA Document and I hereby sign the CLA.

[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️

[istyf]

I have read the CLA Document and I hereby sign the CLA

[kzangeli]

Well spotted, thanks!

[kzangeli]

Seems like the tests are halted due to something I need to do ...
I really don't know what I need to do. I've already accepted the PR.

If no progress on this before, say Tuesday, I'll merge it anyway.
The fix is quite straightforward and I have no doubt whatsoever. It's GOOD.

Would be nice to see the test suite run though ...

[kzangeli]

So, our DevOps expert tells me you need to "enable the Actions on the fork", for the tests to run.
Could you please try that, and we'll see what happens ...

[istyf]

Something along these lines? https://docs.github.com/en/actions/managing-workflow-runs/approving-workflow-runs-from-public-forks

It seems to me that a repo maintainer needs to that, and not the person doing the fork. Right?

[kzangeli]

Only, there isn't any "Workflow(s) awaiting approval". Really don't know what to do.

According to this SOF issue it seems like it's a bug in github ...