Cluster Governance Pallet (#249)

### Description
<!-- Describe what change this PR is implementing -->
This PR introduces the Cluster Governance feature. Previously, only the
SUDO account was authorized to create an active cluster in the Cere
Network. Now, anyone can create an inactive cluster, bond tokens for
that cluster, add genesis nodes, invite external nodes, and later
initiate a proposal to the network to activate the cluster with certain
protocol parameters that impact economics and distribution of rewards
between Cere token holders.

In sake for the overview, I'll list the high-level changes the current
PR contains:
- Bonding for clusters is introduced
- Cluster Node Kind type is introduced (`Genesis`, `External`)
- Cluster Node Status is introduced (`AwaitsValidation`,
`ValidationSucceeded`, `ValidationFailed`)
- Cluster Local Referendum is introduced where cluster members can agree
on an initial set of protocol parameters before propagating the proposal
to the network
- Cluster Public Referendum (integrated with the OpenGov) is introduced
where the network participants can accept or reject changes in a cluster
protocol parameters proposed by its members.
- `ClusterGovParams` type was renamed to `ClusterProtocolParams` to
ensure ubiquitous naming and better reflect the type purpose. Also,
internal some traits such as `ClusterVisitor` were split and renamed to
more domain-specific types.
- Tests and benchmarks for new and changed functions are added
- Migrations for old data structures are provided

### Types of Changes
<!--- What types of changes does your code introduce? -->
- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [x] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Dependency upgrade (A change in substrate or any 3rd party crate
version)

### Migrations and Hooks
<!--- Check the following box with an x if the following applies: -->
- [x] This change requires a runtime migration.
- [ ] Modifies `on_initialize`
- [ ] Modifies `on_finalize`

### Checklist
<!--- All boxes need to be checked. Follow this checklist before
requiring PR review -->
- [x] Change has been tested locally.
- [x] Change adds / updates tests.
- [x] Changelog doc updated.

CHANGELOG.md

@@ -9,6 +9,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - [C] Changes is `Cere` Runtime
 - [D] Changes is `Cere Dev` Runtime
 
+## [5.4.0]
+
+### Changed
+
+- [C,D] `pallet-ddc-clusters-gov`: Introduction of the Cluster Governance pallet for managing clusters protocol parameters.
 
 ## [5.3.0]
 

Cargo.toml

@@ -1,5 +1,5 @@
 [workspace.package]
-version = "5.3.0"
+version = "5.4.0"
 authors = ["Cerebellum-Network"]
 edition = "2021"
 homepage = "https://cere.network/"
@@ -19,6 +19,8 @@ members = [
   "pallets/ddc-staking",
   "pallets/erc20",
   "pallets/erc721",
+  "pallets/ddc-clusters-gov",
+  "pallets/origins",
   "primitives",
   "runtime/cere",
   "runtime/cere-dev",
@@ -175,12 +177,14 @@ cere-service = { path = "node/service" }
 ddc-primitives = { path = "primitives", default-features = false }
 pallet-chainbridge = { path = "pallets/chainbridge", default-features = false }
 pallet-ddc-clusters = { path = "pallets/ddc-clusters", default-features = false }
+pallet-ddc-clusters-gov = { path = "pallets/ddc-clusters-gov", default-features = false }
 pallet-ddc-customers = { path = "pallets/ddc-customers", default-features = false }
 pallet-ddc-nodes = { path = "pallets/ddc-nodes", default-features = false }
 pallet-ddc-payouts = { path = "pallets/ddc-payouts", default-features = false }
 pallet-ddc-staking = { path = "pallets/ddc-staking", default-features = false }
 pallet-erc20 = { path = "pallets/erc20", default-features = false }
 pallet-erc721 = { path = "pallets/erc721", default-features = false }
+pallet-origins = { path = "pallets/origins", default-features = false }
 
 [profile.release]
 panic = "unwind"

pallets/ddc-clusters-gov/Cargo.toml

@@ -0,0 +1,69 @@
+[package]
+name = "pallet-ddc-clusters-gov"
+version.workspace = true
+authors.workspace = true
+edition.workspace = true
+homepage.workspace = true
+license.workspace = true
+readme.workspace = true
+repository.workspace = true
+
+[dependencies]
+codec = { workspace = true }
+ddc-primitives = { workspace = true }
+frame-benchmarking = { workspace = true, optional = true }
+frame-support = { workspace = true }
+frame-system = { workspace = true }
+hex-literal = { workspace = true }
+log = { workspace = true }
+pallet-referenda = { workspace = true }
+scale-info = { workspace = true }
+serde = { workspace = true }
+sp-io = { workspace = true }
+sp-runtime = { workspace = true }
+sp-std = { workspace = true }
+
+[dev-dependencies]
+frame-benchmarking = { workspace = true, default-features = true }
+lazy_static = { workspace = true, default-features = true }
+pallet-balances = { workspace = true, default-features = true }
+pallet-contracts = { workspace = true }
+pallet-conviction-voting = { workspace = true }
+pallet-ddc-clusters = { workspace = true }
+pallet-ddc-nodes = { workspace = true }
+pallet-ddc-staking = { workspace = true }
+pallet-insecure-randomness-collective-flip = { workspace = true, default-features = true }
+pallet-preimage = { workspace = true }
+pallet-scheduler = { workspace = true }
+pallet-timestamp = { workspace = true, default-features = true }
+parking_lot = { workspace = true, default-features = true }
+sp-arithmetic = { workspace = true }
+sp-core = { workspace = true, default-features = true }
+sp-io = { workspace = true, default-features = true }
+sp-tracing = { workspace = true, default-features = true }
+substrate-test-utils = { workspace = true, default-features = true }
+
+[features]
+default = ["std"]
+std = [
+  "codec/std",
+  "ddc-primitives/std",
+  "frame-support/std",
+  "frame-system/std",
+  "frame-benchmarking/std",
+  "scale-info/std",
+  "sp-core/std",
+  "sp-runtime/std",
+  "sp-std/std",
+]
+runtime-benchmarks = [
+  "ddc-primitives/runtime-benchmarks",
+  "frame-benchmarking/runtime-benchmarks",
+  "frame-support/runtime-benchmarks",
+  "frame-system/runtime-benchmarks",
+  "sp-runtime/runtime-benchmarks",
+]
+try-runtime = [
+  "frame-system/try-runtime",
+  "pallet-referenda/try-runtime",
+]