Add localization

src/localize/languages/en.json

@@ -0,0 +1,7 @@
+{
+  "common": {
+    "version": "Version",
+    "invalid_configuration": "Invalid configuration",
+    "show_warning": "Show Warning"
+  }
+}

src/localize/languages/nb.json

@@ -0,0 +1,7 @@
+{
+  "common": {
+    "version": "VErsjon",
+    "invalid_configuration": "Ikke gyldig konfiguration",
+    "show_warning": "Vis advarsel"
+  }
+}

src/localize/localize.ts

@@ -0,0 +1,29 @@
+import * as en from './languages/en.json';
+import * as nb from './languages/nb.json';
+
+var languages = {
+  en: en,
+  nb: nb,
+};
+
+export function localize(string: string, search: string = '', replace: string = '') {
+  const section = string.split('.')[0];
+  const key = string.split('.')[1];
+
+  const lang = (localStorage.getItem('selectedLanguage') || 'en').replace(/['"]+/g, '').replace('-', '_');
+
+  var tranlated: string;
+
+  try {
+    tranlated = languages[lang][section][key];
+  } catch (e) {
+    tranlated = languages['en'][section][key];
+  }
+
+  if (tranlated === undefined) tranlated = languages['en'][section][key];
+
+  if (search !== '' && replace !== '') {
+    tranlated = tranlated.replace(search, replace);
+  }
+  return tranlated;
+}