First big chunk of the refactor

mid-refactor of `take_overall_damage`

Fully refactors the (?:take|heal)_(?:overall|organ)_damage procs

Allows the dead to examine

Removes the `blinded` var

Refactor cyborg components so vision loss is instant

Robot life/death updates instantly

Adds instant updates for damage overlays and HUD icons for humans

Final reconciliation with the species refactor

Adds a stat debugging system and debugging logs

Also fixes instant death on species change

"Debugging logs" are used for stuff an admin wouldn't care about but
someone debugging would

I used it to fix people dying instantly when changing species due to
temporary deletion of the brain

Fox's requests

Adds a more careful updating system to our reagents system

code/datums/datumvars.dm

@@ -31,7 +31,7 @@
 
 /datum/proc/vv_get_var(var_name)
 	switch(var_name)
-		if("attack_log")
+		if("attack_log", "debug_log")
 			return debug_variable(var_name, vars[var_name], 0, src, sanitize = FALSE)
 		if("vars")
 			return debug_variable(var_name, list(), 0, src)