Extended intro (Patreon)

I have once added extended the intro, this time including two more CGs, but more importantly a proper tutorial.

With the overhaul of the Battle System, I felt like it was the right opportunity to start adding the tutorials for all the systems in the game, although the new Battle System is much more straightforward and does not really need a tutorial.
In doing so, the introduction story has also been extended and it gives a little more context to the Bell and Hestia's relationship.

The changelog has not been updated in a while, sorry for that.
While the Battle System is done, there are a few things I'd like to change and test before considering it "ready", but at the same time I wanted to spend time doing other things (such as extending the intro with new scenes, and adding tutorials).
I'll be updating it once I am done testing everything.