Included gamedata/template/ in version control

Updated .gitignore to include the templates folder.
This folder contains template jsons for new adventures.
Fixed typo "Begining" to "Beginning"
Placeholder for Adessive Names

Objects used to have variables for names and names in adessive forms.
(Due to the editor being in finnish..). This was changed a couple of
commits ago, but we had to bring back the variables since they are
referenced around the source code. They shouldn't do anything though.
Improvements to template jsons

The template jsons are based off of the latkazombit jsons, but
they've simply had a bunch of rooms and objects removed. Honestly
it's a really shitty solution at this point, since it's just strange
to start a new adventure and already have some rooms, objects, and
a start and end screen - but what can you do.

We still have to figure out how to make the things like start menus,
etc editable..