Add webperimental ruleset as copy of fcweb

Signed-off-by: Marko Lindqvist <cazfi74@gmail.com>
webperimental: Make diplomat available from Alphabet

Signed-off-by: Marko Lindqvist <cazfi74@gmail.com>
fcweb ruleset: Change descriptions to match usage in freeciv-web

Signed-off-by: Marko Lindqvist <cazfi74@gmail.com>
webperimental: Give AI nations random traits

Signed-off-by: Marko Lindqvist <cazfi74@gmail.com>