integer

``js
// usage
chance.integer()
chance.integer({ min: -20, max: 20 })
`

9007199254740991 is 2^53 - 1 and is the largest number value in JavaScript

Return a random integer.

_range: -9007199254740991 to 9007199254740991_

See: Largest number in JavaScript

`js
chance.integer();
=> -1293235
`

Can optionally provide min and max.

`js
chance.integer({ min: -20, max: 20 })
=> -7
`


These min and max are inclusive, so they are included in the range. This means
`js
chance.integer({ min: -2, max: 2 })
`
would return either -2, -1, 0, 1, or 2.

`js
// Specific case
-2 <= random number <= 2

// General case
min <= random number <= max
``