[pt] pre reform locales added (pt-AO and pt-MZ)

* basic support for alternate AOs added;
* Angola, Mozambique and Cape Verde locales added
- users wishing to maintain older compound rules may use this language
variants;
* TODO activate separate grammar.xml and hunspell checker for preAO.
* TODO add changes to core MessageBundle.properties

languagetool-language-modules/pt/src/main/java/org/languagetool/language/Portuguese.java

@@ -64,7 +64,7 @@ public String getShortCode() {
 
   @Override
   public String[] getCountries() {
-    return new String[]{"AO", "MZ"};
+    return new String[]{"CV"};
   }
 
   @Override

languagetool-language-modules/pt/src/main/resources/META-INF/org/languagetool/language-module.properties

@@ -1,2 +1,2 @@
 # Note: post an pre reform are not listed here, see https://github.com/languagetool-org/languagetool/issues/96
-languageClasses=org.languagetool.language.Portuguese,org.languagetool.language.PortugalPortuguese,org.languagetool.language.BrazilianPortuguese
+languageClasses=org.languagetool.language.Portuguese,org.languagetool.language.PortugalPortuguese,org.languagetool.language.BrazilianPortuguese,org.languagetool.language.AngolaPortuguese,org.languagetool.language.MozambiquePortuguese

languagetool-language-modules/pt/src/main/resources/org/languagetool/MessagesBundle_pt_PT.properties

@@ -315,9 +315,13 @@ moreInfo = Mais informa\u00e7\u00e3o\:
 
 pt = Portugu\u00eas
 
-pt-BR = Portugu\u00eas (Brasil)
+pt-AO = Portugu\u00eas (Angola preAO)
 
-pt-PT = Portugu\u00eas (Portugal)
+pt-MZ = Portugu\u00eas (Mo\u00e7ambique preAO)
+
+pt-BR = Portugu\u00eas (Brasil posAO)
+
+pt-PT = Portugu\u00eas (Portugal posAO)
 
 guiWarning = Aten\u00e7\u00e3o