Properly rebuild resource file if shader changes (#53)

[tbleher]

Unfortunately CMAKE_AUTORCC does not properly add dependencies on the files included by the qrc file. This means that when a file changes that is included in the qrc file, the qrc file is not automatically rebuilt. This results in broken builds.

Fix this by building the qrc file directly (instead of relying on CMAKE_AUTORCC) and adding proper dependencies.

As a side cleanup, move the resources.qrc file to resources/, so the top-level directory is cleaner.

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• [X] I have performed a self-review of my own code.
• [ ] I have made corresponding changes to the documentation.
• [X] My changes generate no new warnings.
• [ ] I have added tests that prove my fix is effective or that my feature works.
• [ ] New and existing unit tests / travis ci pass locally with my changes.

[tbleher]

@pmai und @jdsika : Ich weiß nicht, ob jemand von euch Mails bekommt von Pull-Requests hier, daher kurz ein Mention, dass ihr den Pull Request seht.

[jdsika]

I am in fact not subscribed :) thx for the mention

[tbleher]

@pmai and @jdsika : what needs to be done to get this pull request to be merged? Can you do this, or is there some ASAM process?

[kmeids]

Output CBB 28.04.2021:

1. @stefancyliax will check out why travis did not run on this merge request.

[stefancyliax]

TravisCI did not run because of sercurity reasons as described here: https://docs.travis-ci.com/user/pull-requests/#pull-requests-and-security-restrictions

Rebase for DCO is needed here. @ThomasNaderBMW

[tbleher]

So after a rebase, the change is now built successfully. Who can merge this now?

[ThomasNaderBMW]

Thank you @tbleher , too many topics as you know :/ I will care about the merge at the next CCB on 09.06.

[kmeids]

Output CCB 09.06.2021:

1. Checked by @ThomasNaderBMW and can be merged him as well.