Refactor file structure, and make file

src/main.c

@@ -0,0 +1,17 @@
+#include "connect4.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+int main(int argc, char *argv[])
+{
+  struct Board *my_board = make_board(6, 7);
+  int drop_spot = 0;
+  do {
+    print_board(my_board);
+    printf("Where to drop? ");
+    scanf("%d",&drop_spot);
+  } while (!drop_tile(my_board, drop_spot-1));
+  print_board(my_board);
+  printf("Congratulations!");
+  return EXIT_SUCCESS;
+}