Add OID for `pseudonym`

[Neumann-Nils]

This PR adds OID for pseudonym to the list in oids.js.

The OID is needed support some certificates that follow the RFC5280, where the pseudonym is explicitly mentioned:

-- Naming attributes of type X520Pseudonym

id-at-pseudonym         AttributeType ::= { id-at 65 }

-- Naming attributes of type X520Pseudonym:
--   X520Pseudonym ::= DirectoryName (SIZE (1..ub-pseudonym))
--
-- Expanded to avoid parameterized type:
X520Pseudonym ::= CHOICE {
   teletexString     TeletexString   (SIZE (1..ub-pseudonym)),
   printableString   PrintableString (SIZE (1..ub-pseudonym)),
   universalString   UniversalString (SIZE (1..ub-pseudonym)),
   utf8String        UTF8String      (SIZE (1..ub-pseudonym)),
   bmpString         BMPString       (SIZE (1..ub-pseudonym)) }