Add templates screenshots

[ericoporto]

I apparently already have them here

https://www.adventuregamestudio.co.uk/forums/adventure-related-talk-chat/total-beginner/msg636646456/#msg636646456

possibly a good idea to add them in the manual!

https://github.com/adventuregamestudio/ags-manual/wiki/Templates

[ericoporto]

Not related to the screenshots, but about templates, interesting thing

https://youtu.be/UFmezBqvQBQ?si=51G60gyCH-2JuZeK

The person on YouTube is presenting a game programming tutorial for those who knows nothing, it's a small series that has also twine and other narrative engines. They use the empty game template, and from what I could understand, they go that way because if you don't know about point and click games, they claim it's easier to begin from the empty game template (around 10min in, and forward). I never thought about, but really the templates make sense for us who have played the games they are inspired from.

The popup on the empty game template mentions is written in a way that signals it's not the first you should go.