Rendering scaling and upscaling

[DeltaDesignRus]

It needs to be like in modern games, where the graphical interface is rendered at the monitor's resolution, but all 3D graphics are rendered at a lower resolution.
For this, there will be a resolution scaling option in the graphics settings menu. For example, if the monitor resolution is set to 2560x1440 and the rendering scale is 50%, the menu and all 2D elements will be rendered at 2560x1440, while the 3D graphics will be rendered at 1280x720.

Later, we can add AMD FSR and/or Nvidia DLSS to the game to increase the resolution without losing performance.