• Introduce libibl_lite library.
• engine: Fix EXC_BAD_INSTRUCTION seen when using headless SwapChains on macOS with OpenGL.
• engine: Add new callback API to SwapChain.
• engine: Fix SwiftShader crash when using an IBL without a reflections texture.
• filamat: Shrink internal Skybox material size.
• filamat: improvements to generated material size.
• filamat: silence spirv-opt warnings in release builds.
• matc: Add fog variant filter.
• matc: Fix crash when building mobile materials.
• math: reduce template bloat for matrices.
• Vulkan: robustness improvements.