[vfs][addons] fix media view from addon given content

Before was by opening of e.g. RAR file(s) the view on Videos, Music...
not shown.

Change only related to VFS addons in CFileDirectoryFactory, all
other formats not affected.

Inside compressed files seems a m_bIsFolder of CFile as true not to
handle the source from addon.

This change is tested with old and reworked vfs.rar addon, vfs.sftp
and vfs.libarchive. There it has worked correct, further (as note)
becomes in reworked vfs.rar the directory support of rar files brought
back.

xbmc/filesystem/FileDirectoryFactory.cpp

@@ -86,13 +86,22 @@ IFileDirectory* CFileDirectoryFactory::Create(const CURL& url, CFileItem* pItem,
               *pItem = *wrap->m_items[0];
             }
             else
-            { // compressed or more than one file -> create a dir
-              pItem->SetPath(wrap->m_items.GetPath());
-              return wrap;
+            {
+              // compressed or more than one file -> create a dir
+              *pItem = wrap->m_items;
             }
+
+            // Check for folder, if yes return alsp wrap.
+            // Needed to fix for e.g. RAR files with only one file inside
+            // if yes ignore the warp and return below a nullptr.
+            pItem->m_bIsFolder = URIUtils::HasSlashAtEnd(pItem->GetPath());
+            if (pItem->m_bIsFolder)
+              return wrap;
           }
           else
+          {
             pItem->m_bIsFolder = true;
+          }
 
           delete wrap;
           return nullptr;