Function parse_backends_from_comma_list

pub fn parse_backends_from_comma_list(string: &str) -> Backends

Generates a set of backends from a comma separated list of case-insensitive backend names.

Whitespace is stripped, so both ‘gl, dx12’ and ‘gl,dx12’ are valid.

Always returns WEBGPU on wasm over webgpu.

Names:

• vulkan = “vulkan” or “vk”
• dx12 = “dx12” or “d3d12”
• metal = “metal” or “mtl”
• gles = “opengl” or “gles” or “gl”
• webgpu = “webgpu”