Make raw_socket_istream constructor explicit.
Make raw_socket_istream constructor explicit.

wpilibsuite/ntcore,333fred/ntcore,wpilibsuite/ntcore,robotdotnet/ntcore,robotdotnet/ntcore,robotdotnet/ntcore,333fred/ntcore,wpilibsuite/ntcore,wpilibsuite/ntcore,333fred/ntcore,333fred/ntcore,robotdotnet/ntcore