refactor: Common components are moved to the Common library.

src/ZonyLrcTools.Common/Lyrics/Providers/QQMusic/JsonModel/SongSearchRequest.cs

@@ -0,0 +1,36 @@
+using System.Text;
+using System.Web;
+using Newtonsoft.Json;
+
+namespace ZonyLrcTools.Common.Lyrics.Providers.QQMusic.JsonModel
+{
+    public class SongSearchRequest
+    {
+        [JsonProperty("format")]
+        public string Format { get; protected set; }
+
+        [JsonProperty("inCharset")]
+        public string InCharset { get; protected set; }
+
+        [JsonProperty("outCharset")]
+        public string OutCharset { get; protected set; }
+
+        [JsonProperty("platform")]
+        public string Platform { get; protected set; }
+
+        [JsonProperty("key")]
+        public string Keyword { get; protected set; }
+        
+        protected SongSearchRequest()
+        {
+            Format = "json";
+            InCharset = OutCharset = "utf-8";
+            Platform = "yqq.json";
+        }
+
+        public SongSearchRequest(string musicName, string artistName) : this()
+        {
+            Keyword = HttpUtility.UrlEncode($"{musicName}+{artistName}", Encoding.UTF8);
+        }
+    }
+}