For some reason it seems as if UpdateResource is already defined in
some (other) dependency of Pixelarium.
Instead of throwing around platform specific macros to fix the Windows
build for correct mangling, I decided to simply rename the function.
Fixes#3
* start some resource fiddling
* start some resource fiddling
* initiate a real resource manager
* fix color flicker in rendering
* delete unintended constructors
and add a convenience function to reset the render-image (from the
original image, aka. clone again)
* [OpenGL deprecation warning]
The compiler said that these functions are "deprecated". They seem to
be useless anyway...
* various improvements
* add resource enumerator and documentation
* fix constness stuff
* use existing iterator for insertion
* init unit tests
* rm bogus file
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Co-authored-by: m-aXimilian <keuffnermax@gmail.com>
Maximilian Kueffner