Move Options to Jellyfin.Server and create interface file

Changes following review comments.

Emby.Server.Implementations/IStartupOptions.cs

@@ -0,0 +1,55 @@
+namespace Emby.Server.Implementations.ParsedStartupOptions
+{
+    public interface IStartupOptions
+    {
+        /// <summary>
+        /// --datadir
+        /// </summary>
+        string DataDir { get; }
+
+        /// <summary>
+        /// --configdir
+        /// </summary>
+        string ConfigDir { get; }
+
+        /// <summary>
+        /// --logdir
+        /// </summary>
+        string LogDir { get; }
+
+        /// <summary>
+        /// --ffmpeg
+        /// </summary>
+        string FFmpegPath { get; }
+
+        /// <summary>
+        /// --ffprobe
+        /// </summary>
+        string FFprobePath { get; }
+
+        /// <summary>
+        /// --service
+        /// </summary>
+        bool IsService { get; }
+
+        /// <summary>
+        /// --noautorunwebapp
+        /// </summary>
+        bool AutoRunWebApp { get; }
+
+        /// <summary>
+        /// --package-name
+        /// </summary>
+        string PackageName { get; }
+
+        /// <summary>
+        /// --restartpath
+        /// </summary>
+        string RestartPath { get; }
+
+        /// <summary>
+        /// --restartargs
+        /// </summary>
+        string RestartArgs { get; }
+    }
+}