feat(bundle): add zim format support

pkg/bundle/zim/testdata/beer.stackexchange.com_en_all_2023-05.json

@@ -0,0 +1,14 @@
+{
+    "uuid": "8d141c3b-115d-bf73-294a-ee3c2e6b97b0",
+    "entryCount": 6223,
+    "entries": [
+        {
+            "namespace": "C",
+            "url": "users_page=9",
+            "compression": 5,
+            "size": 58646,
+            "mimeType": "text/html",
+            "title": "users_page=9"
+        }
+    ]
+}

pkg/bundle/zim/testdata/cadoles.json

@@ -0,0 +1,22 @@
+{
+    "uuid": "cf81f094-d802-c790-b854-c74ad9701ddb",
+    "entryCount": 271,
+    "entries": [
+        {
+            "namespace": "C",
+            "url": "blog/202206-ShowroomInnovation.jpg",
+            "compression": 1,
+            "size": 260260,
+            "mimeType": "image/jpeg",
+            "title": "blog/202206-ShowroomInnovation.jpg"
+        },
+        {
+            "namespace": "C",
+            "url": "team/index.html",
+            "compression": 5,
+            "size": 93185,
+            "mimeType": "text/html",
+            "title": "Cadoles - Notre équipe"
+        }
+    ]
+}

pkg/bundle/zim/testdata/wikibooks_af_all_maxi_2023-06.json

@@ -0,0 +1,14 @@
+{
+    "uuid": "ad4f406c-2021-2db8-c729-297568bbe376",
+    "entryCount": 330,
+    "entries": [
+        {
+            "namespace": "M",
+            "url": "Illustration_48x48@1",
+            "compression": 5,
+            "size": 5365,
+            "mimeType": "text/plain",
+            "title": "Illustration_48x48@1"
+        }
+    ]
+}