feat: add contract abstraction to connection router (#267)

* chore: migrate trait to contract.rs, dependencies failing

* fix: handle import issue and update trait usage for service registry

* feat: add contract abstraction sample to connection router

* fix: address mod.rs lint issues

* refactor: remove Err type from contract, connection router test util cleanup

* refactor: revert generate_message function to previous impl

* refactor: final updates for the route test

* chore: last test migration failing due to axelar_wasm_std error

* fix: add cosmwasm::StdError to contract trait, update register chain function

Cargo.toml

@@ -16,6 +16,7 @@ events = { version = "^0.1.0", path = "packages/events" }
 events-derive = { version = "^0.1.0", path = "packages/events-derive" }
 axelar-wasm-std = { version = "^0.1.0", path = "packages/axelar-wasm-std" }
 axelar-wasm-std-derive = { version = "^0.1.0", path = "packages/axelar-wasm-std-derive" }
+integration-tests = { version = "^0.1.0", path = "integration-tests" }
 itertools = "0.11.0"
 voting-verifier = { version = "^0.1.0", path = "contracts/voting-verifier" }
 multisig = { version = "^0.1.0", path = "contracts/multisig" }

contracts/connection-router/Cargo.toml

@@ -54,4 +54,5 @@ valuable = { version = "0.1.0", features = ["derive"] }
 [dev-dependencies]
 cw-multi-test = "0.15.1"
 hex = { version = "0.4.3", default-features = false }
+integration-tests = { workspace = true }
 rand = "0.8.5"