Added Google Test v1.8.0 from rom-properties.
Reworked cert_verify() to support both RSA-4096 and RSA-2048 signatures
and public keys. The function now requires all certificates to use
big-endian, so cert_store.c now uses BE32_CONST() to store the values
as big-endian.
BE32_CONST() is a macro that uses shifting for MSVC and intrinsics for
gcc. This is needed because MSVC 2010 doesn't realize that its byteswap
intrinsics result in constant values. (Later versions might...)
cert.c: New function cert_get_size() that returns the full size of a
built-in certificate.
CertVerifyTest currently tests the retail ticket and TMD certificates.
Both tests pass with all of these changes.
