The view angle rotation matrix order in Unreal Engine was incorrect, leading to incorrect camera orientation.
This commit fixes the order of rotation matrices to roll, pitch, yaw
to correctly implement Unreal Engine camera rotations.
Adds comprehensive unit tests for Unreal Engine formulas, camera and constants.
Marks Unreal Engine as supported in README.md.
Adds project-specific IDE settings to improve code style consistency and development environment.
Removes the .idea directory from the .gitignore file, as these files are now intended to be part of the project for consistent IDE configuration across contributors.
