* Moves `thinking_IC` variable to a trait (#80122)
## About The Pull Request
This was another boolean that was used to just manage stuff codeside
that really was not accessed _too_ much and is ultimately not useful as
a variable on `/mob`. This just moves it to a trait because it's only
really used in a few spots for a similar intent+purpose.
## Why It's Good For The Game
Less stuff to deal with in the average view variables window whenever
looking at a mob, which is really nice and welcome.
## Changelog
Doesn't concern players.
* Moves `thinking_IC` variable to a trait
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Co-authored-by: san7890 <the@san7890.com>
a22c5fde78