* Moved all npc view constants into src
Source side the constants will use Gravity's naming standard(JT_*)
NPC side still supports the old names without JT_
* Moved all effect constants into src
Added check for effect validation to atcommand effect and all script commands using them
Removed the unused and broken function unit_changeviewsize from unit.c
Replaced a lot of hardcoded effect ids with their respective constants
Cleaned up the effect documentations
* Moved all hat effect constants into src
Added check for effect validation to script command hateffect
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