NoMongo: Implement Block User Functionality

[hustlernik]

Is your feature request related to a problem? Please describe.

There is need to implement Block User functionality to facilitate the block and unblock from organization feature on talawa-admin. #3552

Describe the solution you'd like

1. Old Organization schema had blocked user data field.

2. New Schema deprive this field, although I am confused if it was intentional.

3. If not intentional, the Organization Schema needs to be modified to accommodate new Blocked User field.

Potential internship candidates

Please read this if you are planning to apply for a Palisadoes Foundation internship

• Student Internship Programs talawa#359

[hustlernik]

@palisadoes I am working on this.

[Cioppolo14]

@hustlernik Thank you. You have several issues, so I am strategically unassigning you from one or two that don't have open PRs to give some others a chance since you have a lot of open PR work happening.

[hustlernik]

@Cioppolo14 I appreciate the decision.

[hustlernik]

@palisadoes I have created mutations and queries related to Block user functionality as per the need.

[hustlernik]

@palisadoes I will raise the PR soon.