Jam version added as a demo + devlog 1

I decided to upload the jam version as a demo so that Odiumfloreo can participate in the Next Fest. Some differences to note with the full game:

-The levels are much shorter. The full version has longer levels split up in "waves" (for example, later levels with several mechanics start with waves of 2 mechanics active and eventually end with everything active at the same time).

-There isn't much plot beyond the general atmosphere. Full version will expand this in the "point-and-click" levels.

As of writing this, the main 18 levels are already finished (I'm really happy with the last level in particular, mostly because it involves a hammer). I'm currenty working on the "point-and-click" sections, 8 of which are finished and the rest are planned out.