482: Add label parameter to `create_buffer_with_data` r=kvark a=OptimisticPeach
Improves QOL by allowing you to attach a label to a buffer when created with predetermined data:
```
let uniform_buf = device.create_buffer_with_data(
bytemuck::cast_slice(my_data),
wgpu::BufferUsage::UNIFORM,
Some(Cow::Borrowed("My Uniforms")),
);
```
Co-authored-by: OptimisticPeach <patrikbuhring@yahoo.com>