move utils into subfolder

manager thread (wip)

src/utils/socket.h

@@ -0,0 +1,23 @@
+//
+// Created by nicol on 2018-03-18.
+//
+
+#ifndef ESC_SOCKET_H
+#define ESC_SOCKET_H
+
+struct st_socket;
+typedef struct st_socket* socket_t;
+
+enum {
+    SOCKET_TYPE_TCP = 1,
+    SOCKET_TYPE_UDP = 2
+};
+
+socket_t socket_create(int type);
+void socket_close(socket_t s);
+int socket_connect(socket_t s, char* addr, unsigned short port);
+ssize_t socket_send(socket_t s, char* data, size_t len);
+ssize_t socket_recv(socket_t s, char* buf, size_t len);
+int socket_error();
+
+#endif //ESC_SOCKET_H