DIP: add Bit Fields

[Dennis]

On Saturday, 9 March 2024 at 10:46:10 UTC, Daniel N wrote:
> Not on dub, but my closed source makes use of it. Vendor 
> supplied register definitions uses bitfields with C semantics. 
> Also IPC where client/server is written in different languages.

That would be great material for the DIP. Can you give a link to 
such a register definition, and show what your current approach 
is to create C compatible bit fields for it in D?