rar5: unpack wip

src/SharpCompress/Common/Rar/Headers/FileHeader.cs

@@ -405,6 +405,7 @@ namespace SharpCompress.Common.Rar.Headers
         // 4 - good compression
         // 5 - best compression
         internal byte CompressionMethod { get; private set; }
+        internal bool IsStored { get { return CompressionMethod == 0; } }
 
         // eg (see DoUnpack())
         //case 15: // rar 1.5 compression

src/SharpCompress/Compressors/Rar/UnpackV2017/Unpack.cs

@@ -18,23 +18,20 @@ namespace SharpCompress.Compressors.Rar.UnpackV2017
             this.fileHeader = fileHeader;
             this.readStream = readStream;
             this.writeStream = writeStream;
-//            if (!fileHeader.IsSolid)
-//            {
-//                Init(null);
-//            }
-fileHeader.
-            Init(size_t WinSize, fileHeader.IsSolid)
+            if (!fileHeader.IsStored) {
+                Init(fileHeader.WindowSize, fileHeader.IsSolid);
+            }
             Suspended = false;
             DoUnpack();
         }
 
         public void DoUnpack()
         {
-            if (this.fileHeader.CompressionMethod == 0)
+            if (this.fileHeader.IsStored)
             {
                 UnstoreFile();
             } else {
-                DoUnpack(uint Method,bool Solid);
+                DoUnpack(this.fileHeader.CompressionMethod, this.fileHeader.IsSolid);
             }
         }