Create a ledgers bank account rest client if not existing. e5

**Title: Implement REST Client for Ledger Bank Account API if Non-Existent**

**Description:**
Develop a REST client for the Ledger Bank Account API if one is not currently available. This client should facilitate secure access to the API's primary endpoints, enabling interaction with account and transaction data.

**Expected Outcome:**
A fully functional REST client to interact with the Ledger Bank Account API, offering secure and reliable access to account data for further application use.