Card definitions are now stored in data/cards/ in a subdirectory for each
set as YAML files.
YAML is still human readable but stricter and better to handle in code
than ini.

The latex filesystem layout resembles the card definition layout and
is created by the Makefile from the YAML card definitions and must not
be regenerated each time by hand.

* make it usable for permanents if you only have one spawn tile
* let you choose new targets
* be specific about how to copy a permanent (by creating a token)

Tokens have a unique background color and are marked as TOKEN on the card.
The latex commands to generate cards now takes the card title as argument.
Card names or TOKEN is printed on the left type strip to make cards
easier recognizable when hold in hands.