- Add win-iconv header and binaries for win32 platform

- Update wince binaries (win-iconv, curl and libxml2)

trunk/thirdparties/include/win32/win-iconv/iconv.h

@@ -0,0 +1,5 @@
+#include <stddef.h>
+typedef void* iconv_t;
+iconv_t iconv_open(const char *tocode, const char *fromcode);
+int iconv_close(iconv_t cd);
+size_t iconv(iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);