feat: expose function to convert dates

[kabaros]

exposes a method to convert dates from one calendar to another.

Usage:

First install the version of the library from alpha (once PR is merged) yarn add "@dhis2/multi-calendar-dates@alpha"

import { convertDate } from '@dhis2/multi-calendar-dates'


let date = convertDate('2022-10-18', 'nepali')
console.log(date.year, date.month, date.day)

date = convertDate('2022-10-18', 'ethiopic')
console.log(date.eraYear, date.month, date.day) 

The method returns a PlainDate object than can be deconstructed into its parts (year/eraYear, month, day), a helper like the one below can be implemented to return an iso-like string

const toString  = (date) => {
    return date.year + '-'
     + String(date.month).padStart(2, '0')
     + '-'
     + String(date.day).padStart(2, '0')
}


let date = convertDate('2022-10-18', 'nepali')
console.log(toString(date)) // logs  2079-07-01

[dhis2-bot]

🎉 This PR is included in version 1.0.0-alpha.24 🎉

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[dhis2-bot]

🎉 This PR is included in version 1.3.0-alpha.1 🎉

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[dhis2-bot]

🎉 This PR is included in version 1.3.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀