Depending on the OpenSSL version some OIDs are known, some are not.
When reading "oids.txt" file and adding the new OID definitions:
- Silently skip definitions that are 100% identical to the OpenSSL values.
- Give a hint to change identifiers that are used for a different OID
- Give a hint about definitions that differ to remove them from the file.
Also accept them as Alias when reading dn.txt and eku.txt
