refactors poles and trees into basic mobs (#74812)

## About The Pull Request
refactors poles and trees into basic mobs. If trees now see you holding
a chainsaw, hatchet, or some wood they will get angry and knock you out
for longer. Poles will run around giving some of their charge to APCs
they find along the way. i did them both in this PR coz poles were a
subtype of trees.

## Why It's Good For The Game
refactor

## Changelog
🆑
refactor: refactors trees into basic mobs
refactor: refactors poles into basic mobs
add: If trees now see you holding a chainsaw, hatchet, or some wood they
will get angry and knock you out for longer
add: Poles will run around giving some of their charge to APCs they find
along the way
fix: cells charged by the pole will now have their icon correctly
updated to reflect their charge
/🆑

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Co-authored-by: Mothblocks <35135081+Mothblocks@users.noreply.github.com>

tools/UpdatePaths/Scripts/74812_tree_repath.txt

@@ -0,0 +1,2 @@
+/mob/living/simple_animal/hostile/tree : /mob/living/basic/tree{@OLD;wander=@SKIP}
+/mob/living/simple_animal/hostile/tree/festivus : /mob/living/basic/festivus{@OLD;wander=@SKIP}