[crossfire] Improved collect.pl script

[Nicolas Weeger]

Hello.

I just committed a change to the archetypes collect script collect.pl.in
that makes it easier to write and also read archetypes.
You can now use "attacktype fire poison" instead of computing "fire +
poison is 1028".
You can even mix values and text (ie "attacktype 1028 death" to add
death to existing attacktype).

Note that Java Editor (and CrossEdit if it can read archetypes
directly?) should be tweaked to be able to read those values.

Ryo