Initial commit: created project structure, makefile, some static files for future server tests and interphase to create a listening socket

include/netw.h

@@ -0,0 +1,2 @@
+int get_listener_socket(char *port);
+void *get_in_addr(struct sockaddr *sa);

include/utils.h

@@ -0,0 +1 @@
+void err_msg(char *msg);