Provide a new websocket implementation that creates a near one to one
bridge with a Unix Socket connection to Klippy. This may be used to
access Klippy APIs not otherwise available over the primary websocket,
such as the various "dump" commands.
Unlike the primary websocket Moonraker does not decode or inspect
data that passes through the bridge.
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
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