Variable GPUTextureUsage

    GPUTextureUsage: {
        COPY_DST: GPUFlagsConstant;
        COPY_SRC: GPUFlagsConstant;
        RENDER_ATTACHMENT: GPUFlagsConstant;
        STORAGE_BINDING: GPUFlagsConstant;
        TEXTURE_BINDING: GPUFlagsConstant;
    }