Fix corrade-rc executable not found when build target WinRT #81

[linuxaged]

building has passed on my machine.
but not sure what does "similar change would be in UseCorrade.cmake" mean in the TODO comment.

[mosra]

Thanks for working on this!

I just restarted the AppVeyor build as it failed due to some network error, unrelated to your change :)
For UseCorrade.cmake I just checked and apparently nothing is needed anymore (it might have been in the past, which is why the comment). I'll merge this together with a documentation update later today.

For the magnum side of things, regarding OpenAL .. this would need to have vcpkg packages updated with "per-platform defaults" as described by the vcpkg maintainers at mosra/magnum#368. In the meantime installing magnum explicitly without audio should work (but yet again I forgot the correct command how to do that).

[codecov-io]

Codecov Report

Merging #82 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master     #82   +/-   ##
======================================
  Coverage    97.5%   97.5%           
======================================
  Files          87      87           
  Lines        5841    5841           
======================================
  Hits         5695    5695           
  Misses        146     146

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[mosra]

Merged, thank you!

[mosra]

Reverted in bb900a9, since the feature apparently wasn't ever implemented in CMake.