Add Finnish translation, thank you @tlindi

Author: ademar111190

timeago/example/index.html

@@ -65,6 +65,8 @@
     <a href="#" class="locale-link">es</a>
     <a href="#" class="locale-link">es_short</a>
     <a href="#" class="locale-link">fa</a>
+    <a href="#" class="locale-link">fi</a>
+    <a href="#" class="locale-link">fi_short</a>
     <a href="#" class="locale-link">fr</a>
     <a href="#" class="locale-link">fr_short</a>
     <a href="#" class="locale-link">gr</a>

timeago/example/main.dart

@@ -27,6 +27,8 @@ main() async {
   timeago.setLocaleMessages('es', timeago.EsMessages());
   timeago.setLocaleMessages('es_short', timeago.EsShortMessages());
   timeago.setLocaleMessages('fa', timeago.FaMessages());
+  timeago.setLocaleMessages('fi', timeago.FiMessages());
+  timeago.setLocaleMessages('fi_short', timeago.FiShortMessages());
   timeago.setLocaleMessages('fr', timeago.FrMessages());
   timeago.setLocaleMessages('fr_short', timeago.FrShortMessages());
   timeago.setLocaleMessages('gr', timeago.GrMessages());

timeago/lib/src/messages/fi_messages.dart

@@ -0,0 +1,73 @@
+import 'package:timeago/src/messages/lookupmessages.dart';
+
+/// Finnish Messages
+class FiMessages implements LookupMessages {
+  @override
+  String prefixAgo() => '';
+  @override
+  String prefixFromNow() => '';
+  @override
+  String suffixAgo() => 'sitten';
+  @override
+  String suffixFromNow() => 'kuluttua';
+  @override
+  String lessThanOneMinute(int seconds) => 'hetki/-en';
+  @override
+  String aboutAMinute(int minutes) => 'noin minuutti';
+  @override
+  String minutes(int minutes) => '$minutes minuuttia';
+  @override
+  String aboutAnHour(int minutes) => 'noin tunti';
+  @override
+  String hours(int hours) => '$hours tuntia';
+  @override
+  String aDay(int hours) => 'päivä';
+  @override
+  String days(int days) => '$days päivää';
+  @override
+  String aboutAMonth(int days) => 'noin kuukausi';
+  @override
+  String months(int months) => '$months kuukautta';
+  @override
+  String aboutAYear(int year) => 'noin vuosi';
+  @override
+  String years(int years) => '$years vuotta';
+  @override
+  String wordSeparator() => ' ';
+}
+
+/// Finnish short Messages
+class FiShortMessages implements LookupMessages {
+  @override
+  String prefixAgo() => '';
+  @override
+  String prefixFromNow() => '';
+  @override
+  String suffixAgo() => '';
+  @override
+  String suffixFromNow() => '';
+  @override
+  String lessThanOneMinute(int seconds) => 'nyt';
+  @override
+  String aboutAMinute(int minutes) => '1min';
+  @override
+  String minutes(int minutes) => '${minutes}m:ia';
+  @override
+  String aboutAnHour(int minutes) => '~1t';
+  @override
+  String hours(int hours) => '${hours}t:ia';
+  @override
+  String aDay(int hours) => '~pvä';
+  @override
+  String days(int days) => '${days}pvää';
+  @override
+  String aboutAMonth(int days) => '~kk';
+  @override
+  String months(int months) => '${months}kk:ta';
+  @override
+  String aboutAYear(int year) => '~1v';
+  @override
+  String years(int years) => '${years}v:ta';
+  @override
+  String wordSeparator() => ' ';
+}

timeago/lib/timeago.dart

@@ -8,6 +8,7 @@ export 'package:timeago/src/messages/dv_messages.dart';
 export 'package:timeago/src/messages/en_messages.dart';
 export 'package:timeago/src/messages/es_messages.dart';
 export 'package:timeago/src/messages/fa_messages.dart';
+export 'package:timeago/src/messages/fi_messages.dart';
 export 'package:timeago/src/messages/fr_messages.dart';
 export 'package:timeago/src/messages/gr_messages.dart';
 export 'package:timeago/src/messages/he_messages.dart';

timeago_flutter/example/lib/main.dart

@@ -12,6 +12,8 @@ final localesMap = <String, LookupMessages>{
   'zh_CN': ZhCnMessages(),
   'it': ItMessages(),
   'fa': FaMessages(),
+  'fi': FiMessages(),
+  'fi_short': FiShortMessages(),
   'ru': RuMessages(),
   'tr': TrMessages(),
   'pl': PlMessages(),