feat(wasm-utxo): add CLI tool for address operations and PSBT parsing

Add a new CLI tool to provide easy access to wasm-utxo functionality
from the command line. Initial implementation supports:

- Address encoding/decoding across multiple networks
- PSBT parsing with tree-based visualization

Modified Cargo setup to use workspace and expose library as rlib.

Issue: BTC-2652

Co-authored-by: llm-git <[email protected]>

Author: OttoAllmendinger

packages/wasm-utxo/Cargo.lock

@@ -1,10 +1,14 @@
+[workspace]
+members = [".", "cli"]
+resolver = "2"
+
 [package]
 name = "wasm-utxo"
 version = "0.1.0"
 edition = "2021"
 
 [lib]
-crate-type = ["cdylib"]
+crate-type = ["cdylib", "rlib"]
 
 [lints.clippy]
 all = "warn"

packages/wasm-utxo/Cargo.toml

@@ -9,6 +9,7 @@ that help verify and co-sign transactions built by the BitGo Wallet Platform API
 
 - **[`src/wasm-bindgen.md`](src/wasm-bindgen.md)** - Guide for creating WASM bindings using the namespace pattern
 - **[`js/README.md`](js/README.md)** - TypeScript wrapper layer architecture and best practices
+- **[`cli/README.md`](cli/README.md)** - Command-line interface for address and PSBT operations
 
 ## Status