topic/snacman#20 load gltf

[Adnn]

closes #20

• nvprofiler: Implement move-only semantic on Section.
• nvprofiler: Extend print to show single shot entries.
• nvprofiler: Make printed time outputs human friendly.
• Add profiling to the code, display timings via DearImGui.
• Display class::method with TIME_RECURRING_CLASSFUNC.
• Fix Clang warning.
• Profile the render thread (in addition to main thread).
• nvprofiler: Fix bug in displaying human timing of the form "n.xyms".
• Implement a Resources class, currently naively load the cube shape.
• Host ResourceFinder instance in Resources class.
• Load font via Resources instance.
• Implement program loading in Resources (via getShaderEffect).
• Rename Cube shaders to PhongLighting, use getShaderEffect in load shape.
• Upgrade to latest handy, graphics, markovjunior.
• Fix initialization order of Resources data members.
• Fix missing header for scoped_lock in Profiling.h.
• WIP Implement Gltf asset loading. Load position and normal buffers.
• Move loading of effect and cube to snac-renderer.
• Update snac-viewer to load cube and program using snac-renderer.
• Fix forgot to assign the vertex count to gltf loaded meshes.
• Load gltf index buffer, and update renderer for indexed rendering.
• Get gltf bounding box, use it in viewer to center and scale model.
• Implement base color texturing from gltf material.
• Decode sRGB base color texture to linear space prior to loading.
• Add a few high-level GL debug groups.
• Add detailed top-level profiling to render thread.
• Minor: Add a comment regarding irrelevance of Range drawing functions.
• Fix throwing thread dtor on run_application exception.
• Make dynamic the association of texcoords to sampled texture.
• Fix a path in default workspace.
• Implement normal mapping.
• Handle scale from glTF normal texture info.
• Move Freetype instance out of the Renderer, into Resources.
• Host the EntityManager instance in GameContext.
• Add assertions that async ops on render thread are not issued from it.
• Upgrade graphics and math.