Add windows support #231

1. 
   ryanofsky commented at 8:31 am on October 22, 2025: collaborator

   Add support for running on windows. These changes make the libmultiprocess API more generic, using stream types instead of file descriptors. All features are supported, including spawning processes with socket connections to the parent process. These changes were originally made in https://github.com/bitcoin/bitcoin/pull/32387
2. Add windows support

   Add support for running on windows. These changes make the libmultiprocess API
   more generic, using stream types instead of file descriptors. All features are
   supported, including spawning processes with socket connections to the parent
   process. These changes were originally made in
   https://github.com/bitcoin/bitcoin/pull/32387

   7d2f3c4371
3. 
   DrahtBot commented at 8:31 am on October 22, 2025: none

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   Possible typos and grammar issues:

   • analagous -> analogous [spelling mistake in comment; should be “analogous”]
   • being being -> being [duplicated word in comment, makes the sentence awkward/incomprehensible]
   • named path pipe -> named pipe [redundant/incorrect phrasing; likely meant “named pipe”]

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