create own folder for CStarmap file
refactor range map setting part of CStarmap into an own file

All those maps are getting large.
replace a redundant range map with function call
add support for various ship range expansion speeds

added range maps from
http://www.forum.birth-of-the-empires.de/viewtopic.php?p=30955#p30955

Can be selected in ini with
[Special]
EXPANSIONSPEED=SLOW
or MEDIUM, FAST, (default) CLASSIC