Code Quality needs to be improved

[ankitjain28may]

Use php codesniffer for code quality.
1- No documentation
2- No proper comments
3- use of 2 spaces rather than 4
4- use [] rather then array()
5- use use App/{Model1, Model2, Model3} rather repeating again and again(Support in php7 and >)
6- Many more go through the Travis logs

[anantjain6]

• Documentation added

[ankitjain28may]

@anantjain6 Documentation isn't yet completed.

[anantjain6]

Sir, please guide that what else to be added in documentation :)

[ankitjain28may]

You have to add the comments to every function like this--

 /**
     * To Authenticate User Credentials
     *
     * @param array $data To store User Credentials
     *
     * @return string
     */

Function comments and class comments.
run phpcs and fix all the doc comments error