Traverse app and config parent directories when looking up modules

[MartinBriza]

When running something from the build folder, it was really hard to set up the paths properly and it would have to be done manually in most cases. Traversing up from the binary makes it a lot easier. It also takes preference over the config dir because there may be clashes between dir names and the ones in build dir should be preferred.

I'm not sure about the macro constant, not very idiomatic C++, I know.

I know qhot can be integrated in Qt Creator but this makes it way easier to integrate it into CMake and you get automatic setup 'for free', check out this commit in my project to see how I use it: LithApp/Lith@1197bd4 .

In case you want to discuss anything about the PRs I opened today, feel free to hit me on m@rtinbriza.cz or ping Bizon on libera.chat. Thanks for this awesome tool, it will make my life a lot easier!

[patrickelectric]

I need to think more about it when looking closer, I'll try to get back on it during the weekend.

BTW, thanks for the PRs!

[MartinBriza]

Thanks for merging the others and responding so fast! Yes, this could probably use more control, especially about the recursion but I didn't want to add too many arguments at the same time. However I'm fine with any way to go about this, just let me know when you have time. :) Until then I'll just use my fork, there may be some more changes anyway because Windows is annoying.