Update ASN.1 from RFC 6402

[mandelj7]

Added ASN.1 from RFC 6402 and removed the old text

[seanturner]

Mostly just adding ws and new lines.

[seanturner]

Do we also need to add other algs to POPAlgs and WitnessAlgs, e.g.,

POPAlgs MAC-ALGORITHM ::= {
   maca-hMAC-SHA1       |
   maca-hMAC-SHA256     |
   maca-hMAC-SHA384     |
   maca-hMAC-SHA512     |
   maca-hMAC-SHA512-224 |
   maca-hMAC-SHA512-256 |
   maca-hMAC-SHA3-224   |
   maca-hMAC-SHA3-256   |
   maca-hMAC-SHA3-384   |
   maca-SHA3-512,
    ... }

and

WitnessAlgs DIGEST-ALGORITHM ::= {
   mda-sha1       |
   mda-sha256     |
   mda-SHA384     |
   mda-SHA512     |
   mda-SHA512-224 |
   mda-SHA512-256 |
   mda-SHA3-224   |
   mda-SHA3-256   |
   mda-SHA3-384   |
   mda-SHA3-512,
    ...}

[seanturner]

We also probably need to define a new module for kda-PBKDF2 to include the HMAC algorithms.