(cherry picked from commit 3678161d717d0f46c5b5b052a6d6a33438b1df00)

Not all platforms define BN_ULLONG. Define SCTS_TIMESTAMP as a type
which should work on all platforms.
(cherry picked from commit 6634416732b94627eba1c47de3c3a6321a5458f0)

(cherry picked from commit b709f8ef54b1c9ad513878ba0213aa651a9acef8)

Add the extension parser in the s_client, ocsp and x509 apps.

Add the RFC6962 OIDs to the objects table.