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/node/executor/src/lib.rs

@@ -321,20 +321,20 @@ mod tests {
 		sr25519_keyring: &Sr25519Keyring,
 	) -> SessionKeys {
 		SessionKeys {
-			ed25519: ed25519_keyring.to_owned().into(),
-			sr25519: sr25519_keyring.to_owned().into(),
+			grandpa: ed25519_keyring.to_owned().public().into(),
+			babe: sr25519_keyring.to_owned().public().into(),
+			im_online: sr25519_keyring.to_owned().public().into(),
 		}
 	}
 
 	fn new_test_ext(code: &[u8], support_changes_trie: bool) -> TestExternalities<Blake2Hasher> {
 		let mut ext = TestExternalities::new_with_code_with_children(code, GenesisConfig {
-			babe: Some(Default::default()),
 			system: Some(SystemConfig {
 				changes_trie_config: if support_changes_trie { Some(ChangesTrieConfiguration {
 					digest_interval: 2,
 					digest_levels: 2,
 				}) } else { None },
-				..Default::default()
+				.. Default::default()
 			}),
 			indices: Some(IndicesConfig {
 				ids: vec![alice(), bob(), charlie(), dave(), eve(), ferdie()],
@@ -379,19 +379,21 @@ mod tests {
 				offline_slash_grace: 0,
 				invulnerables: vec![alice(), bob(), charlie()],
 			}),
-			democracy: Some(Default::default()),
-			collective_Instance1: Some(Default::default()),
-			collective_Instance2: Some(Default::default()),
-			elections: Some(Default::default()),
 			contracts: Some(ContractsConfig {
 				current_schedule: Default::default(),
 				gas_price: 1 * MILLICENTS,
 			}),
-			sudo: Some(Default::default()),
-			im_online: Some(Default::default()),
+			babe: Some(Default::default()),
 			grandpa: Some(GrandpaConfig {
 				authorities: vec![],
 			}),
+			im_online: Some(Default::default()),
+			democracy: Some(Default::default()),
+			collective_Instance1: Some(Default::default()),
+			collective_Instance2: Some(Default::default()),
+			membership_Instance1: Some(Default::default()),
+			elections: Some(Default::default()),
+			sudo: Some(Default::default()),
 		}.build_storage().unwrap());
 		ext.changes_trie_storage().insert(0, GENESIS_HASH.into(), Default::default());
 		ext