xliffmerge: use official Angular v9 i18n config

First, thanks you for this amazing tool!

i18n is now much simpler in Angular 9, which introduces this config in angular.json:

{
  "projects": {
    "helloworld": {
      "i18n": {
        "sourceLocale": "fr",
        "locales": {
          "en": "src/locale/messages.en.xlf"
} } } } }

So xliffmerge could get this config, if present, instead of its own custom config:

• defaultLanguage > from sourceLocale
• languages > from locales indexes
• genDir > from base path of one of locales values

It would simplify a lot, as most app would now just have to do ng xi18n && xliffmerge with no config at all.

[martinroob]

Thank you for your positive feedback. This is definitively on my agenda for the next release. I was a little bit short 8n time the last weeks. But I plan to start with ng9 updates 7n the next few days.

[andrefilimono]

If nobody is working on this, I’d take a shot at it.