Hello,
I added an empty loading Screen, best I can do 😅

• add LoadingContext
• add Scenes
• load resources step-by-step
• show progress in debug GUI

Have time trouble figure out how all the rendering pipeline works with bgfx and waiting for #818 anyways.
Would be nice if we had some 2D Interfaces (like we have in 3D/) for Text Rendering, UI Elements and simple Sprites (for 2D Viewport).

Depends

• Text Render: Add TextRenderer API which loads and renders Black & White fonts #810
• Bink loader Bink Video Player #6

TODO

• load Scripts/InfoScript2.txt and get random text from HELP_TEXT_TOTD_..
• load random frame from Data/tips.bik into Texture doc: fix 16b.md link #47
  • show as Background, blured
  • show as preview, in rectangle
• UI elements like progress bar and Text ???

Optional

• load Resources async with std::thread ?