* [whisper] Move needed aes_gcm crypto in-crate
In the latest `parity-crypto` release (upcoming 0.4), the aes GCM features were removed (done to remove the dependency on `ring`).
This PR adds the bare minimum crypto needed for Whisper directly to the crate itself and as those were the only features needed from `parity-crypto`, removes the dependency on that crate altogether.
* Upgrade to parity-crypto 0.4
Reverts using NonZeroU32 (introduced [here](b347599cf7)).
* Check for 0 in `args.arg_keys_iteration`
* Use beta.4
* parity-crypto 0.4.0 is released
* support for keystore format produced by pyethereum lib + some debug msgs
* made salt unbound also for Scrypt
* made address optional and skip if its none
* ignore values of any type, not just i32
* WIP: local deps
* cleanup
* enable optional address + more cleanup
* yet another cleanup
* enable keystore wo address import (using passwd)
* cleanup
* doc enchancement
* parity/account fix
* redesign after review
* fix indentation
* ignore just version in json under crypto
* remove unnecessary borrowing within match str
Co-Authored-By: tworec <tworec@golem.network>
* remove another unnecessary borrowing
Co-Authored-By: tworec <tworec@golem.network>
* default derived instead of implementing
* log dependency removed
* [ethstore] warn restored + env_logger initialized in CLI
* applied suggestion from @tomusdrw
