Add new admin user in system

[saurabhmpawar]

Adding user is important please create page as per mentioned below image

Follwoing thigs are accepting criteria

1. Do not save password in plain text in database https://stackoverflow.com/questions/1054022/best-way-to-store-password-in-database

2. add the following fields to database

• created on --> by which time the user is created
• modified by --> who is modify that user -created by --> who is created that user

3. String password check will be optional.

4. Complete unit test cases