exercicio 'leap' no percurso Dart concluido

dart/leap/.exercism/config.json

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+{
+  "authors": [
+    "SuperPaintman"
+  ],
+  "contributors": [
+    "jvarness",
+    "Stargator",
+    "kytrinyx"
+  ],
+  "files": {
+    "solution": [
+      "lib/leap.dart"
+    ],
+    "test": [
+      "test/leap_test.dart"
+    ],
+    "example": [
+      ".meta/lib/example.dart"
+    ],
+    "invalidator": [
+      "pubspec.yaml"
+    ]
+  },
+  "blurb": "Determine whether a given year is a leap year.",
+  "source": "CodeRanch Cattle Drive, Assignment 3",
+  "source_url": "https://web.archive.org/web/20240907033714/https://coderanch.com/t/718816/Leap"
+}

dart/leap/.exercism/metadata.json

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+{"track":"dart","exercise":"leap","id":"86add6a25fe54052987310d5c9191d4f","url":"https://exercism.org/tracks/dart/exercises/leap","handle":"sanctushck","is_requester":true,"auto_approve":false}