Add metrics for Database

[Romes8]

• introduce metrics that will count reads and writes into database.

This will help us see the status when we do DB merge.

[Romes8]

As doing some research I found that middleware can not be used for these types of metrics. Middleware is good for tracking actions that happen with each HTTP request. However, we have more reads and writes than HTTP requests.

With this in mind, I will implement the logic inside the code.