Refactor key management (#3296)

* Add Call type to extensible transactions.

Cleanup some naming

* Merge Resource and BlockExhausted into just Exhausted

* Fix

* Another fix

* Call

* Some fixes

* Fix srml tests.

* Fix all tests.

* Refactor crypto so each application of it has its own type.

* Introduce new AuthorityProvider API into Aura

This will eventually allow for dynamic determination of authority
keys and avoid having to set them directly on CLI.

* Introduce authority determinator for Babe.

Experiment with modular consensus API.

* Work in progress to introduce KeyTypeId and avoid polluting API
with validator IDs

* Finish up drafting imonline

* Rework offchain workers API.

* Rework API implementation.

* Make it compile for wasm, simplify app_crypto.

* Fix compilation of im-online.

* Fix compilation of im-online.

* Fix more compilation errors.

* Make it compile.

* Fixing tests.

* Rewrite `keystore`

* Fix session tests

* Bring back `TryFrom`'s'

* Fix `srml-grandpa`

* Fix `srml-aura`

* Fix consensus babe

* More fixes

* Make service generate keys from dev_seed

* Build fixes

* Remove offchain tests

* More fixes and cleanups

* Fixes finality grandpa

* Fix `consensus-aura`

* Fix cli

* Fix `node-cli`

* Fix chain_spec builder

* Fix doc tests

* Add authority getter for grandpa.

* Test fix

* Fixes

* Make keystore accessible from the runtime

* Move app crypto to its own crate

* Update `Cargo.lock`

* Make the crypto stuff usable from the runtime

* Adds some runtime crypto tests

* Use last finalized block for grandpa authority

* Fix warning

* Adds `SessionKeys` runtime api

* Remove `FinalityPair` and `ConsensusPair`

* Minor governance tweaks to get it inline with docs.

* Make the governance be up to date with the docs.

* Build fixes.

* Generate the inital session keys

* Failing keystore is a hard error

* Make babe work again

* Fix grandpa

* Fix tests

* Disable `keystore` in consensus critical stuff

* Build fix.

* ImOnline supports multiple authorities at once.

* Update core/application-crypto/src/ed25519.rs

* Merge branch 'master' into gav-in-progress

* Remove unneeded code for now.

* Some `session` testing

* Support querying the public keys

* Cleanup offchain

* Remove warnings

* More cleanup

* Apply suggestions from code review

Co-Authored-By: Benjamin Kampmann <ben.kampmann@googlemail.com>

* More cleanups

* JSONRPC API for setting keys.

Also, rename traits::KeyStore* -> traits::BareCryptoStore*

* Bad merge

* Fix integration tests

* Fix test build

* Test fix

* Fixes

* Warnings

* Another warning

* Bump version.

substrate/core/service/test/src/lib.rs

@@ -135,10 +135,6 @@ fn node_config<F: ServiceFactory> (
 ) -> FactoryFullConfiguration<F>
 {
 	let root = root.path().join(format!("node-{}", index));
-	let mut keys = Vec::new();
-	if let Some(seed) = key_seed {
-		keys.push(seed);
-	}
 
 	let config_path = Some(String::from(root.join("network").to_str().unwrap()));
 	let net_config_path = config_path.clone();
@@ -173,13 +169,13 @@ fn node_config<F: ServiceFactory> (
 		roles: role,
 		transaction_pool: Default::default(),
 		network: network_config,
-		keystore_path: Some(root.join("key")),
+		keystore_path: root.join("key"),
+		keystore_password: None,
 		database_path: root.join("db"),
 		database_cache_size: None,
 		state_cache_size: 16777216,
 		state_cache_child_ratio: None,
 		pruning: Default::default(),
-		keys: keys,
 		chain_spec: (*spec).clone(),
 		custom: Default::default(),
 		name: format!("Node {}", index),
@@ -195,7 +191,7 @@ fn node_config<F: ServiceFactory> (
 		force_authoring: false,
 		disable_grandpa: false,
 		grandpa_voter: false,
-		password: "".to_string().into(),
+		dev_key_seed: key_seed,
 	}
 }