RegexManager microservice

[vihar-s1]

1. RegexManager
   1. Delete RegexManager ?
   2. Reformat as MongoManager ?
      1. Analytics ?
      2. Database ?
2. Switch Database from Elasticsearch to MongoDB ?
   1. store posts in MongoDB instead of Elasticsearch
   2. use elasticsearch to generate analytics data

[vihar-s1]

use case as data store for resources like access tokens for services, and other config related data.

Basically, shifting configuration from environment file to MongoDB