Add Varsig Multiformat (#322)

* Add varsig

* Change name of previously used 0xd000

* Update table.csv

Co-authored-by: Rod Vagg <[email protected]>

* Fix spacing

---------

Co-authored-by: Rod Vagg <[email protected]>

Author: expede

table.csv

@@ -31,6 +31,7 @@ multicodec,                     multiformat,    0x30,           draft,
 multihash,                      multiformat,    0x31,           draft,
 multiaddr,                      multiformat,    0x32,           draft,
 multibase,                      multiformat,    0x33,           draft,
+varsig,                         multiformat,    0x34,           draft,      Variable signature (varsig) multiformat
 dns,                            multiaddr,      0x35,           permanent,
 dns4,                           multiaddr,      0x36,           permanent,
 dns6,                           multiaddr,      0x37,           permanent,
@@ -506,7 +507,7 @@ ssz-sha2-256-bmt,               multihash,      0xb502,         draft,      SSZ
 json-jcs,                       ipld,           0xb601,         draft,      The result of canonicalizing an input according to JCS - JSON Canonicalisation Scheme (RFC 8785)
 iscc,                           softhash,       0xcc01,         draft,      ISCC (International Standard Content Code) - similarity preserving hash
 zeroxcert-imprint-256,          zeroxcert,      0xce11,         draft,      0xcert Asset Imprint (root hash)
-varsig,                         varsig,         0xd000,         draft,      Namespace for all not yet standard signature algorithms
+nonstandard-sig,                varsig,         0xd000,         deprecated, Namespace for all not yet standard signature algorithms
 es256k,                         varsig,         0xd0e7,         draft,      ES256K Siganture Algorithm (secp256k1)
 bls-12381-g1-sig,               varsig,         0xd0ea,         draft,      G1 signature for BLS-12381-G2
 bls-12381-g2-sig,               varsig,         0xd0eb,         draft,      G2 signature for BLS-12381-G1