Ledger Bitcoin TypeScript Client Alias for @bitcoinerlab

This package serves as an internal package for use by other packages within the organization. It provides an alias for the Ledger Bitcoin TypeScript client. All credit for the underlying technology and functionality should be attributed to Ledger, the company behind the product.

Note: This package can be replaced with the official npm package once this PR is published to npm (likely in version > 0.2.1).