Fixes some missing push_data calls (fixes #3683) (#3714)

Fixes every issue in #3683. Every single one. I'm sort of scared, given how easy this fix was.

Also changes basic pathfinder behaviour. It will now stop moving/output null as the direction if it can't see its target, instead of continuing moving in the same direction. Might remove this if people don't like the change.

code/modules/integrated_electronics/subtypes/data_transfer.dm

@@ -91,7 +91,8 @@
 
 	for(var/i = 1 to outputs.len)
 		set_pin_data(IC_OUTPUT, i, i == output_index ? output : null)
-
+	
+	push_data()
 	activate_pin(2)
 
 /obj/item/integrated_circuit/transfer/demultiplexer/medium

code/modules/integrated_electronics/subtypes/input.dm

@@ -166,6 +166,7 @@
 	else
 		set_pin_data(IC_OUTPUT, 1, null)
 
+	push_data()
 	activate_pin(2)
 
 /obj/item/integrated_circuit/input/adjacent_locator
@@ -185,6 +186,7 @@
 	var/atom/A = get_pin_data_as_type(IC_INPUT, 1, /atom)
 	if(!A)
 		set_pin_data(IC_OUTPUT, 1, null)
+		push_data()
 		return
 	var/desired_type = A.type
 
@@ -197,6 +199,7 @@
 
 	if(valid_things.len)
 		set_pin_data(IC_OUTPUT, 1, pick(valid_things))
+		push_data()
 
 /obj/item/integrated_circuit/input/signaler
 	name = "integrated signaler"

code/modules/integrated_electronics/subtypes/memory.dm

@@ -41,7 +41,7 @@
 	for(var/i = 1 to inputs.len)
 		var/data = get_pin_data(IC_INPUT, i)
 		set_pin_data(IC_OUTPUT, i, data)
-
+	push_data()
 	activate_pin(2)
 
 /obj/item/integrated_circuit/memory/storage/medium
@@ -85,6 +85,7 @@
 
 /obj/item/integrated_circuit/memory/constant/do_work()
 	set_pin_data(IC_OUTPUT, 1, data)
+	push_data()
 	activate_pin(2)
 
 /obj/item/integrated_circuit/memory/constant/attack_self(mob/user)

code/modules/integrated_electronics/subtypes/output.dm

@@ -272,6 +272,7 @@
 	if(camera)
 		set_camera_status(0)
 		set_pin_data(IC_INPUT, 2, FALSE)
+		push_data()
 
 /obj/item/integrated_circuit/output/led
 	name = "light-emitting diode"
@@ -292,6 +293,7 @@
 
 /obj/item/integrated_circuit/output/led/power_fail()
 	set_pin_data(IC_INPUT, 1, FALSE)
+	push_data()
 
 /obj/item/integrated_circuit/output/led/any_examine(mob/user)
 	var/text_output = list()

code/modules/integrated_electronics/subtypes/smart.dm

@@ -20,11 +20,14 @@
 	set_pin_data(IC_OUTPUT, 1, null)
 
 	if(!isweakref(I.data))
+		push_data()
 		return
 	var/atom/A = I.data.resolve()
 	if(!A)
+		push_data()
 		return
 	if(!(A in view(get_turf(src))))
+		push_data()
 		return // Can't see the target.
 	var/desired_dir = get_dir(get_turf(src), A)