User Module | Delete Feature

# User Delete Feature
## User Story
**User Story:**
After using Appliction as a user if am not satisfied with the service provided i have to delete my account

## Task
- [ ] Implementation of DAO Layer
- [ ] Validation of inputs
- [ ] Implementation of a Service Layer
- [ ] Create JUnit TestCases
- [ ] Ensure Test Cases are passing
- [ ] Write comments for the methods used

## DAO

- [ ] findUserById

## Service
- [ ] deleteUserById

## Validation
- [ ] Login Validation
- [ ] userId Validation

## Junit Test Cases
### Dao
- [ ] findUserByID Test
### Service
- [ ] deleteUserById
### Validation
- [ ] LoginValidation Test
- [ ] userId Validation Test
## FlowChart
```mermaid
graph TD;
A[ Start ];
B[ User Id Validation]
C[ Login Validation]
D[ InValid Entry Exception]
E[ Update delete Status]
F[ Success Message]
A --> B
B -->|Success|C
B -->|Fail|D
D -->H
C --> |success| E
C -->|Fail| I[Validation Exception]
E -->|success|F
E -->|Fail|G[Service Exception]
G --> H
F --> H[End]