feat: set up FFI

Signed-off-by: Sphericalkat <me@kat.bio>

test/readability_test.dart

@@ -0,0 +1,17 @@
+import 'package:readability/readability.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('A group of tests', () {
+    final ReadabilityParser parser = ReadabilityParser();
+
+    setUp(() {
+      // Additional setup goes here.
+    });
+
+    test('First Test', () {
+      final Article article = parser.parse('https://www.bbc.com/sport/football/articles/cl7y4z82z2do');
+      expect(article.title, isNotNull);
+    });
+  });
+}