Do all doctor - patient related things

# Do all doctor - patient related things
- Conversation
- Message
## Tech Stack 
### use 
- Mongodb Database
- ExpressJs 
-  JWT for authentication
- MVC for  design pattern
- Socket for real-time communication
## Task to do 
- Create schema 
- All CRUD operation
- Do server-side code for socket
- Create all route use best practice we learn 