Number formatting

If activeLanguage = 'hu', then these translation texts:

// l10n.hu.json
{
  "number1": "1. szám: {{ 0 | number }}",
  "number2": "2. szám: {{ 0 | N : maximumFractionDigits = 1 }}",
  "number3": "3. szám: {{ 0 | N : maximumSignificantDigits = 2; useGrouping = false }}"
}

And this employ will produce the indicated output:

<ng-container *translate="let t; node: 'l10n'">
  <div>{{ t('number1', 1234.56789) }}</div>
  <div>{{ t('number2', 1234.56789) }}</div>
  <div>{{ t('number3', 1234.56789) }}</div>
</ng-container>

// HTML output
1. szám: 1 234,567
2. szám: 1 234,5
3. szám: 1200
 

See options later.