Change character rotations Cavernicola

[nicofo]

Separated from issue #160

[nicofo]

Definition of done:

• Test on a unity project that the models are looking the right direction.
• To do so, rotate little by little the meshes on blender unitl they look right.

[nicofo]

Pull Request #200

[nicofo]

Pull request #200 closed. New pull request fixed #204

[nicofo]

Reviewed and merged