Separate VNF socket send functions into separate socket library

nfapi/oai_integration/socket/include/socket_common.h

@@ -21,12 +21,18 @@
 #ifndef SOCKET_COMMON_H
 #define SOCKET_COMMON_H
 
+#define _GNU_SOURCE /* required for pthread_getname_np */
 #include <errno.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <netinet/in.h>
 #include <netinet/sctp.h>
+#include <assertions.h>
+#include <arpa/inet.h>
+#include <unistd.h>
 #include <sys/socket.h>
+#include <pthread.h>
+#include <netdb.h>
 
 int socket_send_p5_msg(const int sctp,
                        const int socket,