The models are rotated by 90 degree

[kimkulling]

Describe the bug
All imported models are rotated by 90 degree.

To Reproduce
Steps to reproduce the behavior:

1. Start the app
2. Import an asset
3. Enjoy the rotated asset.

Expected behavior
The asset shall not be rotated,

Screenshots
https://www.reddit.com/r/Assimp/comments/1b1lib3/the_current_status_of_my_own_assetimporterviewer/

Desktop (please complete the following information):

• OS: Windows

Smartphone (please complete the following information):
NA

Additional context
NA

[kimkulling]

This issue is related to assimp/assimp#849