Remove tmp blend files

Summary:

Feature XY does not work anymore.

Removes *.blend1 files and add *.blend1 to gitignore. See https://cgcookie.com/articles/what-is-a-blend1-file-and-do-you-really-need-them

Steps to reproduce:

1. Open Scramble
2. Do thing
3. Hope for the best

Expected behaviour:

Should show 42.

Current behaviour:

Actually shows 41.

Logs or screenshots:

your error log here

Scramble version:

v0.0.0

OS/device including version:

Windows 10 64-bit

Acceptance Criteria

• Feature is red
• Feature works in multplayer
• Is translated

Definition of done

• All unit tests pass
• Conforms to the Coding Conventions
• Conforms to the Gitiquette
• Pull Request is rebased and ready for merge