Add project files.

AscNet.Common/Common.cs

@@ -0,0 +1,25 @@
+using MongoDB.Driver;
+using Config.Net;
+
+namespace AscNet.Common
+{
+    public static class Common
+    {
+        public static readonly IConfig config;
+        public static readonly MongoClient mongoClient;
+        public static readonly IMongoDatabase db;
+
+        static Common()
+        {
+            config = new ConfigurationBuilder<IConfig>().UseJsonFile("Configs/config.json").Build();
+            mongoClient = new(
+               new MongoClientSettings
+               {
+                   Server = new MongoServerAddress(config.Database.Host, config.Database.Port),
+                   //    Credential = MongoCredential.CreateCredential("admin", config.Database.Username, config.Database.Password)
+               }
+           );
+           db = mongoClient.GetDatabase(config.Database.Name);
+        }
+    }
+}