New release: cardano-signer v1.19.0

* 1.19.0

# NEW FUNCTION - Adding authors signatures for CIP100 JSONLD metadata

- A new function is now available via the 'sign --cip100' parameter. Its now possible to add authors entries (Name + Signature) with a single command using cardano-signer

# UPDATE/CHANGES:

General:

- cardano-signer is now compatible with CIP129 standard for drep, committee-cold and committee-hot bech strings. this works now for all functions that allow a '--address' parameter.

CIP 8/30 DataSign:

- you can now directly also use governance bech-ids for the '--address' parameter like 'drep1xxx'

CIP 100 - Governance:

- the canonize&hash command 'hash' introduced in version 1.17 was renamed to 'canonize'. change was made to avoid confusion, because this command is to output the hash of the canonized body, not the file-hash.
- output fields of the 'canonize' and 'verify' function changed 'hash' is now 'canonizedHash', 'canonized' is now 'canonizedBody'
- in addition to the existing checks in the 'verify' function, cardano-signer now also checks for duplicated public-key entries in the authors array of the input jsonld file