StringPrep DN canonicalization support and some fix

z* Changes from 10.5.27 to 10.6.0 (2022-Nov-04)

• x509.js
  • X509.getParam
    • add support for optional parameter "dncanon" and "dnhex"
  • X509.getInfo
    • update representation for AltName
  • X509.{getIssuer,getSubect}
    • add support for optional argument flagCanon, flagHex
  • X509.c14RDNArray added to convert from RDN array to canonicalized
    DN name (a.k.a. StringPrep).
  • X509.getX500Name
    • API document updated
  • X509.getOtherName
    • member name changed from "other" to "value" for
      consistency with KJUR.asn1.x509.OtherName class constructor.
    • Also oid member value in return object will be an oid name if defined.
  • X509.setCanonicalizedDN added to set "canon" member value
• asn1x509.js
  • smtpUTF8Mailbox oid added to OID class
  • API document fix
• asn1.js
  • DERTaggedObject API document update
• test/qunit-do-{asn1x509,x509-ext,x509-getinfo,x509-param,x509}.html
  • update some test cases for above