Added proper termination after user pressed CTRL+D, call to mic_tcp_close

src/apps/client.c

@@ -42,5 +42,7 @@ int main()
         printf("[TSOCK] Appel de mic_send valeur de retour : %d\n", sent_size);
     }  
 
+    mic_tcp_close(sockfd);
+    
     return 0;
 }