This adds an npipe protocol option for Windows hosts, akin to unix
sockets for Linux hosts. This should become the default transport
for Windows, but this change does not yet do that.
It also does not add support for the client side yet since that
code is in engine-api, which will have to be revendored separately.
Signed-off-by: John Starks <jostarks@microsoft.com>
This function was only being used from a single place opts/opts.go. This
change moves it from a incohesive package (parsers) to the single place it
is used.
Also made a bunch of the helper methods private because they are not used
by any external modules.
Signed-off-by: Daniel Nephin <dnephin@docker.com>