Create a library on npmjs

[dagmawig]

• Create the message system as an npm package on npmjs.
• Library would have a subscribe, publish and fetch functionality for message.
• Library would potentially include a script to set up postgres DB to prepare for message dispatch and subscription.

[dagmawig]

First version of library published at https://www.npmjs.com/package/pg-sub-noti
So far the library expects the postgres DB to already be set up to have a table under a schema.
It also expects the table to have an insert trigger that calls a function on the schema that executes pg notify.