Build module - single item build, existing items movement

[veteran29]

Q	A
Bug fix?	no
New feature?	no
Needs wipe?	no
Fixed issues	#523

Description:

Further development of build module.

Content:

• Close camera when player unit dies
• Add an API for "single item build"
  • Build FOB via "single item build"
• Initial draft for build display toolbox/topbar with buttons
  • Movement of placed objects, initial implementation via button in toolbox
• Units will look in correct direction after build/load
• Moved items build confirmation into separate method
• Added KPLIB_build_item_built_local event, KPLIB_build_item_built is global now

Additional content

• core_getNearestSector refactored into core_getNearestMarker
• Simplified core_buildFob into a "system" function used only for fob marker creation handling
• Improved core_canBuildFob
• Player fob build action handled via event "KPLIB_fob_build_requested"
• Fixed core vehicle spawn actions not added to saved vehicles

Successfully tested on:

• Local MP Vanilla
• Dedicated MP Vanilla

Compatibility checked with:

• Nothing

[Wyqer]

Looks in general good to me, but haven't had a look at it in the game itself. I'm confident it'll be nice from the look&feel, too.
Overall I recognized that there could be slightly more commenting at some code areas.
But well, it was very late ^^

[Wyqer]

In-game review things I've encountered by testing the current state (should be adressed in S9):

• Limited zeus without free cam usage on the Liberty will set you under water and you can't rise due to the height restriction. This should be estimated from player position, not at z0.
• After spawning the following function log message appears:
  
• Build menu panel on the left side could get a slightly offset from the borders. Looks cut off currently
• (not build menu) Redeploy action appears doubled in action menu, when in FOB or at Liberty and go near the Potato 01. Also the action from the Potato 01 is localized on the server and not on the client.