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/DiscIO/Src/VolumeWiiCrypted.cpp

@@ -5,7 +5,7 @@
 #include "VolumeWiiCrypted.h"
 #include "VolumeGC.h"
 #include "StringUtil.h"
-#include "Crypto/sha1.h"
+#include "polarssl/sha1.h"
 
 namespace DiscIO
 {