added new projects and some base code for persistence

Tv7Playlist.Core/Parsers/ParsedTrack.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Diagnostics;
+
+namespace Tv7Playlist.Core.Parsers
+{
+    [DebuggerDisplay("ParsedTrack-{Id}(Name:{Name}, Url:{Url})")]
+    public class ParsedTrack
+    {
+        public ParsedTrack(int id, string name, string url)
+        {
+            Id = id;
+            Name = name;
+            Url = url ?? throw new ArgumentNullException(nameof(url));
+        }
+
+        public int Id { get; }
+
+        public string Name { get; }
+
+        public string Url { get; }
+
+        protected bool Equals(ParsedTrack other)
+        {
+            return Id == other.Id && string.Equals(Name, other.Name) && string.Equals(Url, other.Url);
+        }
+
+        public override bool Equals(object obj)
+        {
+            if (ReferenceEquals(null, obj)) return false;
+            if (ReferenceEquals(this, obj)) return true;
+            if (obj.GetType() != GetType()) return false;
+            return Equals((ParsedTrack) obj);
+        }
+
+        public override int GetHashCode()
+        {
+            unchecked
+            {
+                var hashCode = Id;
+                hashCode = (hashCode * 397) ^ (Name != null ? Name.GetHashCode() : 0);
+                hashCode = (hashCode * 397) ^ (Url != null ? Url.GetHashCode() : 0);
+                return hashCode;
+            }
+        }
+
+        public override string ToString()
+        {
+            return $"{nameof(Id)}: {Id}, {nameof(Name)}: {Name}, {nameof(Url)}: {Url}";
+        }
+    }
+}