radar stuff

correct some values, externalize others.
oversight: default isn't 0
minor optimization
changes to kneeling & vertical movement

- allows pathfinding vertically from a kneeled position.
moddable craft/UFO sight ranges; suspended till i check them.

Merge branch 'master' of https://github.com/SupSuper/OpenXcom into oXc_kL
Conflicts:
	bin/data/Ruleset/Xcom1Ruleset.rul
	src/Geoscape/GeoscapeState.cpp
	src/Ruleset/RuleCraft.cpp
	src/Ruleset/RuleCraft.h
	src/Ruleset/RuleUfo.cpp
	src/Ruleset/RuleUfo.h