Integrate HashiCorp Vault:

[airnomad1]

Description

BAT can be used as Postman alternative with better security for credentials & PII Masking. This PR would provide basic integration with HashiCorp Vault service to fetch credentials stored in the Vault. This would solve the security issues caused by storing sensitive credentials in local machines, Also this would stop exposing credentials deliberately. HashiCorp Vault is integrated with in the execution context 'World' to fetch configured credentials via the Vault.

How it works ?

To use the Vault integration follow these steps.

1. Create the environment variable VAULT_ADDR = {VAULT ENDPOINT}
2. Login to your Vault & fetch the secret to unseal the Vault
3. Pass these parameters to cucumber-js when running the tests. Reference the example below.

cucumber-js --world-parameters '{\"vault_token\":\"VAULT-SECRET\", \"vault_secret\":\"PATH-TO-SECRET-STORED-IN-THE-VAULT"}'

TODO:

1. Add more unit tests for the Vault Integration.
2. Make JSON response with syntax highlighting
3. Change the way vault_token & vault_secret passed to the runtime. Use environment variables may be.