apptest_simdbench

This test was made while researching Intel and ARM Neon SIMD intrinsics and their performance.

The branch with intrinsics was not merged back as auto-vectorization seemed fast enough, while this benchmark was added to the rest of the tests.

Controls

• Use the mouse, the keyboard, the gamepad, or the touch screen to interact with the ImGui interface
• Pressing Escape on the keyboard will quit the application