New language: Introducing Dutch for Neon

[Woodehh]

What current issue(s) from Trello/Github does this address?
None

What problem does this PR solve?
The lack of the Dutch language

How did you solve this problem?
By translating and adding a Dutch flag to the ecosystem

How did you make sure your solution works?
By checking everything in line.

Are there any special changes in the code that we should be aware of?
No

Is there anything else we should know?
I had to recreate the Snapshots of the unittester by using yarn jest --updateSnapshot otherwise it wouldn't compile. Oh and Dutchies are cool.

• Unit tests written?

[coveralls]

Pull Request Test Coverage Report for Build 7716

• 19 of 20 (95.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.2%) to 41.961%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
app/core/constants.js	0	1	0.0%

Totals
Change from base Build 7693:	0.2%
Covered Lines:	1514
Relevant Lines:	3272

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💛 - Coveralls

[ixje]

Thanks! A couple of minor typo's comments, other than that looks good 👍