feat(hwi): set hwi as top level command

- add ledger and coldcard integration
- update hwi as top level command
- update CHANGELOG

Author: tvpeter

CHANGELOG.md

@@ -5,6 +5,8 @@ page. See [DEVELOPMENT_CYCLE.md](DEVELOPMENT_CYCLE.md) for more details.
 
 ## [Unreleased]
 
+- Add `hwi` top level command with subcommands: `devices`, `register`, `address` and `sign` transaction
+
 ## [1.0.0]
 
 - Changed the MSRV to 1.75.0 and bumped the rust edition to 2021