Support PolarSSL on *nix

Removed unneeded PolarSSL directories.
Remove duplicate sha1 and md5 files.
Define out SSL test file writing.
Fix format string bug and warning.

Source/Core/Common/Src/Crypto/tools.h

@@ -4,7 +4,7 @@
 
 #ifndef _TOOLS_H
 #define _TOOLS_H
-#include "sha1.h"
+#include "polarssl/sha1.h"
 
 // bignum
 int bn_compare(u8 *a, u8 *b, u32 n);