Upgrade nesbot/carbon to version 2

[iget-master]

Just noticed that nesbot/carbon package received a new major version, with many improvements over version 1:

• Released new internationalization system
• Added 60+ new locales
• Added 100+ new methods
• Added local settings system
• Added immutability
• Added CarbonTimeZone

and more (that's the changelog for the first beta, some things changed between it and the stable version)

Would be great to have it on Laravel. Didn't checked yet all the changes to look for breaking changes, but looks that there's no big changes there.

[kylekatarnls]

This is our proposal for allowing Carbon 2 and CarbonImmutable: laravel/framework#25320

[kylekatarnls]

It's merged to be released in 5.8, if you want it in a lower version you can force it using composer aliases as described in the documentation at this page: https://carbon.nesbot.com/#gettingstarted

[alirza143]

How to update carbon in laravel

[kylekatarnls]

Laravel 5.8 and greater versions use Carbon 2 by default, if you want it in a lower version you can force it using composer aliases as described in the documentation at this page: https://carbon.nesbot.com/#gettingstarted

@iget-master maybe you could close this issue as it's done.