Add files needed on Windows to build the stuff from a release tarball.
Add files needed on Windows to build the stuff from a release tarball.

sukinull/usrsctp,saghul/usrsctp,faithfracture/usrsctp,bebo/usrsctp,JlnWntr/usrsctp,JlnWntr/usrsctp,liamstask/usrsctp,sukinull/usrsctp,weinrank/usrsctp,ossy-szeged/usrsctp,weinrank/usrsctp,bebo/usrsctp,CoolmanCZ/usrsctp,sctplab/usrsctp,CoolmanCZ/usrsctp,liamstask/usrsctp,CoolmanCZ/usrsctp,JlnWntr/usrsctp,faithfracture/usrsctp,sctplab/usrsctp,sctplab/usrsctp,ossy-szeged/usrsctp,CoolmanCZ/usrsctp,saghul/usrsctp,faithfracture/usrsctp,weinrank/usrsctp