Enjoy new examples: 3d_games/walking_adventure, 3d_games/...

[DP News-Robot]

We did some rearrangement of our examples, to showcase better engine features and some good demos. First of all, we now have 3d_games and 2d_games subdirectories in our engine examples. The names 2d_games, 3d_games are alphabetically first — which is a nice bonus, we want them to be noticeable. Example 3d_games/ walking_adventure has been added to the engine repository. It’s …