Resolve "Fix compiling Mint19"
Closes https://gitlab.lan.local/Sight/sight/issues/158
To allow Mint19 compiling:
Added includes in RayTracingVolumeRenderer.cpp and SRenderStats.cpp
Closes https://gitlab.lan.local/Sight/sight/issues/158
To allow Mint19 compiling:
Added includes in RayTracingVolumeRenderer.cpp and SRenderStats.cpp