Description

This PR introduces support for a wide range of scene-based 3D file imports via custom static mesh format (.sm). The packing of static mesh files have also replaced the tinyobjloader dependency with assimp, enabling importing from a wide variety of formats, including GLTF, which can support a node hierarchy of meshes, that are baked into the single mesh file on packing.

The work also sees the inclusion of a new runtime-interned string token system (technical details available here: https://capscollective.com/blog/siege-string-tokens/) for known token handling and comparison. To complement this new feature, attribute file parsing methods have been homogenised across the project to allow for custom asset files implementing this system (just scenes and static meshes for now) to be easily loaded and queried in a standard manner.

In addition to these new features, the following changes have also been made:

• Improved logging for pack file generation
• Manually pinned all vendor submodule dependencies in setup scripts
• Removed GLM dependency
• Added and updated unit testing for resources, scenes and more
• Fixed zlib and libPng reuse for setup scripts
• Fixed usages of VLAs across codebase
• Fixed various packer related crashes
• Fixed string class handling of wide characters

The PR has been...

• provided a reasonable name that is not just the branch name (e.g "Added Vulkan render delegate")
• linked to its related issue
• assigned a reviewer from the team
• labelled appropriately

The code has been...

• made mergable and free of conflicts in relation to master (according to GitHub)
• tested in a packaged state using the package targets
• pulled to the reviewer's machine and reasonably tested