Added /maps folder w/ a WIP Nacht Der Untoten remake

Signed-off-by: gigimoi <gassmann.gavin@gmail.com>
Signed-off-by: gigimoi <gassmann.gavin@gmail.com>
Modifier MK1 texture slightly

Added barricades (In code & To Nacht Der Untoten)

Signed-off-by: gigimoi <gassmann.gavin@gmail.com>