remove some plenks

no logic changes
kill the cargo instead of just destroying it

fixes #2983 and the player statistics
Merge pull request #3439 from Mailaender/kill-cargo

Kill Cargo properly
Merge pull request #3429 from Mailaender/dont-crash-on-drop

Don't crash when the player to drop can't be found.
Merge pull request #3452 from Mailaender/center-range

Don't discriminate bottom right directions when checking whether a unit is in range.
dead harvester will splatter Tiberium
port harvester documentation to the new inline Desc format
rename ore to the more generic name resources everywhere
weapons can now create resources

- renamed warhead Ore: to a more generic and descriptive name
- NOD chemsprayers will now create Tiberium upon death
Don't require RenderBuilding for SeedsResources

if applied to unit husks without active animation.