[#71] Merge develop and minor bugfixes

include/vkcv/Core.hpp

include/vkcv/DescriptorConfig.hpp

include/vkcv/Handles.hpp

include/vkcv/ShaderProgram.hpp

modules/material/include/vkcv/material/Material.hpp

modules/material/src/vkcv/material/Material.cpp

modules/upscaling/include/vkcv/upscaling/FSRUpscaling.hpp

modules/upscaling/src/vkcv/upscaling/FSRUpscaling.cpp

projects/first_mesh/assets/Szene/Szene.bin

projects/first_mesh/assets/Szene/Szene.gltf

projects/first_mesh/assets/Szene/boards2_vcyc.jpg

projects/first_mesh/assets/Szene/boards2_vcyc_jpg.jpg

projects/first_mesh/assets/cube/boards2_vcyc_jpg.jpg

projects/first_mesh/assets/cube/cube.bin

projects/first_mesh/assets/cube/cube.blend

projects/first_mesh/assets/cube/cube.blend1

projects/first_mesh/assets/cube/cube.glb

projects/first_mesh/assets/cube/cube.gltf

projects/first_mesh/assets/shaders/shader.frag

projects/first_mesh/assets/shaders/shader.vert