Unable to decrompress archive containing folders (compressed with 7zip)

Hello,

i have some troubles decrompressing a zip file that contains folders. It seems only to be a problem if the file was created using 7zip (on Windows). If I create the archive with the build in windows tool everything works fine.

My archive looks something like that:
```
archive
- somefolder
- - someotherfile
- somefile
```
Results in:
```
outputfolder
- somefolder ---> **this is a empty file now**
- somefile
```
I guess its a problem with decrompess and not with 7zip (other decrompessing tools are working fine with my example archive).

Example: [archive_from_7zip.zip](https://github.com/kevva/decompress/files/7978785/archive_from_7zip.zip)

PS: For me it is currently not a problem, I just wanted to inform you about this behaviour.

Thanks & BG Manuel

Start by reproducing the extraction problem with the attached archive_from_7zip.zip and inspect how its folder entries are handled. Done means the folder is created as a directory rather than an empty file, and its nested file extracts correctly.

Written by the indexing model from the issue text.