* New anyx.io node added to nodelist
* GetWitnesses fixed

Scheduled weekly dependency update for week 43

* GetWitnesses added to witness

Improve documentation

Account
* update_account_keys added for changing account keys
* comment fixed for chains without SBD
RC
* RC changes from 0.20.6 included
Witness
* Fixed for chains without SBD symbol
Operations
* Claim_reward_balance fixed for chains without SBD symbol

Chains
* VIT fixed

* Changelog adapted
* depreated witness_api for next release 0.20.6 removed

fix Comment reward calculations

remove debug print

Adding additional parameter to recharge time calculations

Unit test added for keygen and suggest()