Update Pier_v1 project

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

도면추출/app/Code/giyang_extract/libredwg/examples/rsencode.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+unsigned char data[239];
+unsigned char parity[16];
+
+main ()
+{
+  int len, i;
+  while (!feof (stdin))
+    {
+      len = fread (data, 1, 239, stdin);
+      rs_encode_block (parity, data, len);
+
+      for (i = 0; i < 16; i++)
+        {
+          if (i != 0)
+            fputc ('-', stderr);
+        }
+
+      fwrite (data, 1, len, stdout);
+
+      while (len++ < 239)
+        fputc (0, stdout); /* Pad data with 0s */
+
+      fwrite (parity, 16, 1, stdout);
+    }
+}