Implement pallet that extends our current treasury pallet with buyout feature

Cargo.toml

@@ -11,6 +11,7 @@ members = [
 	"pallets/vesting-manager",
 	"pallets/orml-currencies-allowance-extension",
 	"pallets/orml-tokens-management-extension",
+	"pallets/treasury-buyout-extension",
 	"runtime/common",
 	"runtime/amplitude",
 	"runtime/foucoco",

pallets/treasury-buyout-extension/Cargo.toml

@@ -0,0 +1,68 @@
+[package]
+authors = ["Pendulum Chain"]
+edition = "2021"
+name = "treasury-buyout-extension"
+version = "1.0.0"
+
+[dependencies]
+codec = {package = "parity-scale-codec", version = "3.1.5", default-features = false, features = ["derive", "max-encoded-len"]}
+scale-info = {version = "2.2.0", default-features = false, features = ["derive"]}
+serde = {version = "1.0.130", default-features = false, features = ["derive"], optional = true}
+sha2 = {version = "0.8.2", default-features = false}
+
+# Substrate dependencies
+frame-support = {git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.40", default-features = false}
+frame-system = {git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.40", default-features = false}
+sp-core = {git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.40", default-features = false}
+sp-runtime = {git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.40", default-features = false}
+sp-std = {git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.40", default-features = false}
+sp-arithmetic = {git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.40", default-features = false} 
+pallet-treasury = {git = "https://github.com/paritytech/substrate", default-features = false, branch = "polkadot-v0.9.40"}
+
+frame-benchmarking = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.40", default-features = false, optional = true }
+
+orml-asset-registry = { git = "https://github.com/open-web3-stack/open-runtime-module-library.git", default-features = false, branch = "polkadot-v0.9.40" }
+orml-currencies = { git = "https://github.com/open-web3-stack/open-runtime-module-library", branch = "polkadot-v0.9.40", default-features = false }
+orml-tokens = { git = "https://github.com/open-web3-stack/open-runtime-module-library", branch = "polkadot-v0.9.40", default-features = false }
+orml-traits = { git = "https://github.com/open-web3-stack/open-runtime-module-library", branch = "polkadot-v0.9.40", default-features = false }
+
+dia-oracle = {git = "https://github.com/pendulum-chain/oracle-pallet", default-features = false, branch = "polkadot-v0.9.40"}
+dia-oracle-runtime-api = {git = "https://github.com/pendulum-chain/oracle-pallet", default-features = false, branch = "polkadot-v0.9.40"}
+oracle = { git = "https://github.com/pendulum-chain/spacewalk", default-features = false, rev = "20a3dd191dc352f989f90a1a48eacb8ff6d9ac85" }
+
+
+[dev-dependencies]
+mocktopus = "0.8.0"
+frame-benchmarking = { git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.40" }
+sp-io = {git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.40", default-features = false}
+
+pallet-balances = {git = "https://github.com/paritytech/substrate", branch = "polkadot-v0.9.40"}
+
+# Spacewalk libraries
+spacewalk-primitives = { git = "https://github.com/pendulum-chain/spacewalk", default-features = false, rev = "d05b0015d15ca39cc780889bcc095335e9862a36"}
+
+
+[features]
+default = ["std"]
+std = [
+  "serde",
+  "codec/std",
+  "sha2/std",
+  "sp-core/std",
+  "sp-std/std",
+  "sp-arithmetic/std",
+  "sp-runtime/std",
+  "frame-support/std",
+  "frame-system/std",
+  "orml-currencies/std",
+  "orml-tokens/std",
+  "orml-traits/std",
+  "frame-benchmarking/std",
+  "spacewalk-primitives/std"
+]
+
+runtime-benchmarks = [
+    "frame-benchmarking/runtime-benchmarks",
+    "frame-support/runtime-benchmarks",
+    "frame-system/runtime-benchmarks",
+]

pallets/treasury-buyout-extension/src/benchmarking.rs

@@ -0,0 +1 @@
+

pallets/treasury-buyout-extension/src/default_weights.rs

@@ -0,0 +1 @@
+