Feature/#769 additional party identifiers transaction scenarios (#3)

* - Added configuration reference to on-boarding document.
- updated references from Casablanca to Mowali in the licensing note.

* Updated on-boarding to refer the reader to central-ledger for postman installation procedure.

* - cleanup sensitive informations being written to the console and logs.
- update log messages.
- added health endpoint to verify database availability.
- updated on-boarding document to reflect health end point.
- added 'hapi-alive' package to package.json
- updated the release version from 6.2.0 to 6.2.1

* - Added new health.js file to include health response.
- Removed database health check from server.js as it added no value in the greater Mojaloop project.
- Updated dependencies in package.json file to latest.

* - commented out all references to console.log.
- included error codes on the swagger.json file for health check.

onboarding.md

@@ -13,6 +13,7 @@ In this document we'll walk through the setup a local Mojaloop Quoting Service a
 - [Software List](#software-list)
 - [Setting up a local quote environment](#setting-up-a-local-quote-environment)
 - [Initialising the database and starting the service](#initialising-the-database-and-starting-the-service)
+- [Health Check](#health-check)
 - [Run Tests](#run-tests)
 
 ## Software List
@@ -51,6 +52,17 @@ Run the below from the root quoting-service in your terminal session to start th
 npm start
 ```
 
+## Health check
+
+To verify the database is connected once the server started, run this from your browser;
+```
+http://localserver:3002/health
+```
+
+If all is well, the following responce will be received'
+
+**Quoting service Database connection is healthy!!!**
+
 ## Run Tests
 
 Please refer to Central-Ledger repository to setup Postman.