GenesisConfig presets for runtime (#2714)

The runtime now can provide a number of predefined presets of
`RuntimeGenesisConfig` struct. This presets are intended to be used in
different deployments, e.g.: `local`, `staging`, etc, and should be
included into the corresponding chain-specs.

Having `GenesisConfig` presets in runtime allows to fully decouple node
from runtime types (the problem is described in #1984).

**Summary of changes:**
- The `GenesisBuilder` API was adjusted to enable this functionality
(and provide better naming - #150):
   ```rust
    fn preset_names() -> Vec<PresetId>;
fn get_preset(id: Option<PresetId>) -> Option<serde_json::Value>;
//`None` means default
    fn build_state(value: serde_json::Value);
    pub struct PresetId(Vec<u8>);
   ```

- **Breaking change**: Old `create_default_config` method was removed,
`build_config` was renamed to `build_state`. As a consequence a node
won't be able to interact with genesis config for older runtimes. The
cleanup was made for sake of API simplicity. Also IMO maintaining
compatibility with old API is not so crucial.
- Reference implementation was provided for `substrate-test-runtime` and
`rococo` runtimes. For rococo new
[`genesis_configs_presets`](https://github.com/paritytech/polkadot-sdk/blob/3b41d66b97c5ff0ec4a1989da5ffd8b9f3f588e3/polkadot/runtime/rococo/src/genesis_config_presets.rs#L530)
module was added and is used in `GenesisBuilder`
[_presets-related_](https://github.com/paritytech/polkadot-sdk/blob/3b41d66b97c5ff0ec4a1989da5ffd8b9f3f588e3/polkadot/runtime/rococo/src/lib.rs#L2462-L2485)
methods.

- The `chain-spec-builder` util was also improved and allows to
([_doc_](https://github.com/paritytech/polkadot-sdk/blob/3b41d66b97c5ff0ec4a1989da5ffd8b9f3f588e3/substrate/bin/utils/chain-spec-builder/src/lib.rs#L19)):
   - list presets provided by given runtime (`list-presets`),
- display preset or default config provided by the runtime
(`display-preset`),
   - build chain-spec using named preset (`create ... named-preset`),


- The `ChainSpecBuilder` is extended with
[`with_genesis_config_preset_name`](https://github.com/paritytech/polkadot-sdk/blob/3b41d66b97c5ff0ec4a1989da5ffd8b9f3f588e3/substrate/client/chain-spec/src/chain_spec.rs#L447)
method which allows to build chain-spec using named preset provided by
the runtime. Sample usage on the node side
[here](https://github.com/paritytech/polkadot-sdk/blob/2caffaae803e08a3d5b46c860e8016da023ff4ce/polkadot/node/service/src/chain_spec.rs#L404).

Implementation of #1984.
fixes: #150
part of: #25

---------

Co-authored-by: Sebastian Kunert <skunert49@gmail.com>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

polkadot/runtime/rococo/src/lib.rs

@@ -20,6 +20,11 @@
 // `construct_runtime!` does a lot of recursion and requires us to increase the limit.
 #![recursion_limit = "512"]
 
+use authority_discovery_primitives::AuthorityId as AuthorityDiscoveryId;
+use beefy_primitives::{
+	ecdsa_crypto::{AuthorityId as BeefyId, Signature as BeefySignature},
+	mmr::{BeefyDataProvider, MmrLeafVersion},
+};
 use pallet_nis::WithMaximumOf;
 use parity_scale_codec::{Decode, Encode, MaxEncodedLen};
 use primitives::{
@@ -40,9 +45,6 @@ use runtime_common::{
 	traits::{Leaser, OnSwap},
 	BlockHashCount, BlockLength, SlowAdjustingFeeUpdate,
 };
-use scale_info::TypeInfo;
-use sp_std::{cmp::Ordering, collections::btree_map::BTreeMap, prelude::*};
-
 use runtime_parachains::{
 	assigner_coretime as parachains_assigner_coretime,
 	assigner_on_demand as parachains_assigner_on_demand, configuration as parachains_configuration,
@@ -56,16 +58,13 @@ use runtime_parachains::{
 	scheduler as parachains_scheduler, session_info as parachains_session_info,
 	shared as parachains_shared,
 };
-
-use authority_discovery_primitives::AuthorityId as AuthorityDiscoveryId;
-use beefy_primitives::{
-	ecdsa_crypto::{AuthorityId as BeefyId, Signature as BeefySignature},
-	mmr::{BeefyDataProvider, MmrLeafVersion},
-};
+use scale_info::TypeInfo;
+use sp_genesis_builder::PresetId;
+use sp_std::{cmp::Ordering, collections::btree_map::BTreeMap, prelude::*};
 
 use frame_support::{
 	construct_runtime, derive_impl,
-	genesis_builder_helper::{build_config, create_default_config},
+	genesis_builder_helper::{build_state, get_preset},
 	parameter_types,
 	traits::{
 		fungible::HoldConsideration, Contains, EitherOf, EitherOfDiverse, EverythingBut,
@@ -127,6 +126,7 @@ use xcm_fee_payment_runtime_api::Error as XcmPaymentApiError;
 #[cfg(test)]
 mod tests;
 
+mod genesis_config_presets;
 mod validator_manager;
 
 impl_runtime_weights!(rococo_runtime_constants);
@@ -2363,12 +2363,22 @@ sp_api::impl_runtime_apis! {
 	}
 
 	impl sp_genesis_builder::GenesisBuilder<Block> for Runtime {
-		fn create_default_config() -> Vec<u8> {
-			create_default_config::<RuntimeGenesisConfig>()
+		fn build_state(config: Vec<u8>) -> sp_genesis_builder::Result {
+			build_state::<RuntimeGenesisConfig>(config)
 		}
 
-		fn build_config(config: Vec<u8>) -> sp_genesis_builder::Result {
-			build_config::<RuntimeGenesisConfig>(config)
+		fn get_preset(id: &Option<PresetId>) -> Option<Vec<u8>> {
+			get_preset::<RuntimeGenesisConfig>(id, &genesis_config_presets::get_preset)
+		}
+
+		fn preset_names() -> Vec<PresetId> {
+			vec![
+				PresetId::from("local_testnet"),
+				PresetId::from("development"),
+				PresetId::from("staging_testnet"),
+				PresetId::from("wococo_local_testnet"),
+				PresetId::from("versi_local_testnet"),
+			]
 		}
 	}
 }