Moved call to Case Generator & bug fixing

So that when it’s called the list of NPCs has been already initialised.

Also, one of the NPCs was visible by default in the prefab, changed
that too.
Version fixing

Test
Updating

Blah blah
Merge pull request #6 from JohnMai/master

Solved version conflict
Updated Game Manager and Case Generator

To start supporting case generation.
Merge pull request #20 from mentatzoe/master

Merge conflict solved: Added changes to NPCs and updated Case Generation