Migrate to JSON i18n

Procedure per https://www.mediawiki.org/wiki/Manual:GenerateJsonI18n.php
with shim.

Change-Id: Ied3a4c392cf2ea16c6e858a1baaf9790db95e1f4

i18n/yue.json

@@ -0,0 +1,21 @@
+{
+    "@metadata": {
+        "authors": [
+            "PhiLiP",
+            "Shinjiman",
+            "Shirayuki"
+        ]
+    },
+    "contributionscores": "貢獻分數",
+    "contributionscores-desc": "根據響wiki數據庫畀出最高嘅[[Special:ContributionScores|用戶貢獻容量]]",
+    "contributionscores-info": "分數會用下面嘅計法去計:\n*每一個唯一一版編輯過嘅有1分\n*(總編輯數)-(總唯一頁數)嘅平方根 * 2\n響呢方面計嘅分數會睇編輯多樣性同編輯量相比。 基本噉講，呢個分數係會依主要嘅唯一編輯過嘅頁，同埋考慮高編輯量 - 假設係一篇高質量嘅文章。",
+    "contributionscores-top": "(最高$1名)",
+    "contributionscores-days": "最近$1日",
+    "contributionscores-allrevisions": "全部修訂",
+    "contributionscores-score": "分數",
+    "contributionscores-pages": "版",
+    "contributionscores-changes": "更改",
+    "contributionscores-username": "用戶名",
+    "contributionscores-invalidusername": "無效嘅用戶名",
+    "contributionscores-invalidmetric": "無效嘅公制"
+}