Un-hardcoded excess power factor and excess power minimum
Un-hardcoded several radiuses and production-related count for units hanging around base
removed redundant default mini bridges
replace misleading Underwater bool with what it really does
define torpedoes in a more generic way

fixes #3252 and closes #2097
update CHANGELOG
new Bridge terrain type with grey minimap color
allow invalid terrain targets for Air/Water bound weapons

made terrain targeting consistent with actors
allow to C4 intact bridges that have taken some damage
this is not just ShowMuzzles anymore
temperate roads should be brown in the minimap
remove unused interior terrain types

no smudges on high walls
display shroud by default again
Merge pull request #4407 from Mailaender/torpedo-bridges

Made torpedos not travel through land, but destroy bridges
Merge pull request #4414 from Mailaender/d2k-shroud

Display shroud by default again in Dune 2000
Merge pull request #4415 from reaperrr/hackyai-unhardcoding-rev2

Un-hardcoded several HackyAI aspects
Update CHANGELOG

for #4415
removed the build radius restrictions