Add ConnectCore (#461)

Author: zhongbai2333

plugins/connect_core/plugin_info.json

@@ -0,0 +1,16 @@
+{
+	"id": "connect_core",
+	"authors": [
+		{
+			"name": "zhongbai233",
+			"link": "https://github.com/zhongbai2333"
+		}
+	],
+	"repository": "https://github.com/zhongbai2333/ConnectCore",
+	"branch": "master",
+	"labels": ["api", "management"],
+    "introduction": {
+        "en_us": "README.md",
+        "zh_cn": "README_zh.md"
+    }
+}