TimeRange

A class to represent time ranges (interval of time between to instants).

``javascript
const { TimeRange } = require('@jgoizueta/timerange');

const t = TimeRange.fromText('2018-03');
console.log(t.next().text);
console.log(t.startValue, t.endValue);
`

Output:
`
2018-04
1519862400000 1522540800000
`

`javascript
for (let t = TimeRange.fromText('2018-Q2'); t.precedes(TimeRange.fromText('2019-Q2')); t = t.next()) {
console.log(t.text);
}
`

Output:
`
2018-Q2
2018-Q3
2018-Q4
2019-Q1
``