adds qcc cppstd compatibility info

[tannerbitz]

Changelog: Bugfix: adds qcc cppstd compatibility info to allow dep graph to be calculated.
Docs: Omit

Close #13325

• Refer to the issue that supports this Pull Request.
• If the issue has missing info, explain the purpose/use case/pain/need that covers this Pull Request.
• I've read the Contributing guide.
• I've followed the PEP8 style guides for Python code.
• I've opened another PR in the Conan docs repo to the develop branch, documenting this one.

^{Note: By default this PR will skip the slower tests and will use a limited set of python versions. Check here how to increase the testing level by writing some tags in the current PR body text.}

[CLAassistant]

All committers have signed the CLA.

[memsharded]

Fantastic, many thanks!
Do you think you could add some unit test to cover this so it doesn't break in the future?
If not, we can help with that.

[memsharded]

The PR is targeted to develop2 branch, if we want to have it in 2.0.2, it should be targeted to release/2.0 branch

[tannerbitz]

The PR is targeted to develop2 branch, if we want to have it in 2.0.2, it should be targeted to release/2.0 branch

@memsharded thank you for the correction. This is my first contribution to the conan project and and didn't know that! I have reset the target branch on this PR. Does a second PR need to be opened to merge this into develop2 or will this PR suffice?

[memsharded]

@memsharded thank you for the correction. This is my first contribution to the conan project and and didn't know that! I have reset the target branch on this PR. Does a second PR need to be opened to merge this into develop2 or will this PR suffice?

This PR is enough, we manage all the sync between branches internally.

What about the above mentioned test? Do you think that you will be able to contribute a unit test, or would you like some help with that? Thanks!

[tannerbitz]

@memsharded thank you for the correction. This is my first contribution to the conan project and and didn't know that! I have reset the target branch on this PR. Does a second PR need to be opened to merge this into develop2 or will this PR suffice?

This PR is enough, we manage all the sync between branches internally.

What about the above mentioned test? Do you think that you will be able to contribute a unit test, or would you like some help with that? Thanks!

@memsharded I can write the unit test, but admittedly haven't written one in python before. Can you point me to where I need to put it in the codebase?

[tannerbitz]

@memsharded I think I figured out the unittest. It runs and passes (locally at least, CI will tell the true story in a couple minutes). Please let me know if more needs to be added.

[memsharded]

@memsharded I think I figured out the unittest. It runs and passes (locally at least, CI will tell the true story in a couple minutes). Please let me know if more needs to be added.

That's perfect, thanks very much! Merging this, so this becomes part of next 2.0.2