New feature: pillar tool
* Added ability to add and remove pillars on transport belts and pipes, similar to train track pillars.
* Added 'remove_redundant_transport_pillars' console command to remove all redundant transport pillars. We recommend saving your game before using it. Removing redundant pillars can improve performance.
Improvements
* Stacker tower rails can now be placed on the ocean.
* Ocean area notifications now update when entities are moved.
* Optimized transport product rendering based on camera distance, reducing transport simulation update time by up to 50% (up to 10% of overall sim update).
* Optimized construction manager, up to 8x faster when many constructions are paused (up to 10% of overall sim update).
* Optimized ocean-related height change processing, saving about 1ms per simulation step on large saves (up to 3% of overall sim update).
Fixes
* Fixed amphibious hydrogen excavator having incorrect construction costs.
* Fixed a ship pathfinding bug that could lead to ships pathing through obstacles.
* Fixed cargo ships using incorrect crew size for different ship tiers.
* Fixed stacker tower throttling being applied at half the intended rate, also causing delayed construction of new segments.
* Fixed stacker tower max terrain height calculation for segment layouts.
* Fixed stacker tower area selection not considering its pivot correctly.
* Fixed issues when adding or removing train track pillars.
