feat(ITS): add ITS message ABI encoding/decoding support (#65)

Co-authored-by: Milap Sheth <milap@interoplabs.io>

Cargo.toml

@@ -1,10 +1,6 @@
 [workspace]
 resolver = "2"
-members = [
-  "contracts/*",
-  "integration-tests",
-  "packages/*",
-]
+members = ["contracts/*", "integration-tests", "packages/*"]
 
 [workspace.package]
 edition = "2021"
@@ -18,8 +14,12 @@ axelar-gas-service = { version = "^0.1.0", path = "contracts/axelar-gas-service"
 axelar-gateway = { version = "^0.1.0", path = "contracts/axelar-gateway" }
 axelar-operators = { version = "^0.1.0", path = "contracts/axelar-operators" }
 interchain-token-service = { version = "^0.1.0", path = "contracts/interchain-token-service" }
-interchain-token = { version = "^0.1.0", path = "contracts/interchain-token" }
-example = { version = "^0.1.0", path = "contracts/example" }
+alloy-primitives = { version = "0.7.6", default-features = false, features = [
+  "std",
+] }
+alloy-sol-types = { version = "0.7.6", default-features = false, features = [
+  "std",
+] }
 
 [workspace.lints.clippy]
 nursery = "warn"

contracts/interchain-token-service/Cargo.toml

@@ -10,12 +10,16 @@ publish = true
 crate-type = ["cdylib", "rlib"]
 
 [dependencies]
+alloy-primitives = { workspace = true }
+alloy-sol-types = { workspace = true }
 axelar-soroban-std = { workspace = true }
-soroban-sdk = { workspace = true }
+soroban-sdk = { workspace = true, features = ["alloc"] }
 
 [dev-dependencies]
 axelar-soroban-std = { workspace = true, features = ["testutils"] }
-soroban-sdk = { workspace = true, features = ["testutils"] }
+goldie = { version = "0.5" }
+hex = "0.4"
+soroban-sdk = { workspace = true, features = ["testutils", "alloc"] }
 
 [features]
 testutils = ["soroban-sdk/testutils", "axelar-soroban-std/testutils"]