More sensible clothing w_class

Helmets, suits, shoes, and large articles of clothing now have a more
appropriate w_class = 3. Slippers are small enough to have w_class = 2.

code/modules/clothing/clothing.dm

@@ -134,6 +134,7 @@ BLIND     // can't see anything
 
 /obj/item/clothing/gloves/emp_act(severity)
 	if(cell)
+		//why is this not part of the powercell code?
 		cell.charge -= 1000 / severity
 		if (cell.charge < 0)
 			cell.charge = 0
@@ -170,6 +171,7 @@ BLIND     // can't see anything
 	siemens_coefficient = 0.9
 	body_parts_covered = FEET
 	slot_flags = SLOT_FEET
+	w_class = 3
 
 	permeability_coefficient = 0.50
 	slowdown = SHOES_SLOWDOWN
@@ -186,6 +188,7 @@ BLIND     // can't see anything
 	slot_flags = SLOT_OCLOTHING
 	var/blood_overlay_type = "suit"
 	siemens_coefficient = 0.9
+	w_class = 3
 
 //Spacesuit
 //Note: Everything in modules/clothing/spacesuits should have the entire suit grouped together.
@@ -232,6 +235,7 @@ BLIND     // can't see anything
 	flags = FPRINT | TABLEPASS
 	slot_flags = SLOT_ICLOTHING
 	armor = list(melee = 0, bullet = 0, laser = 0,energy = 0, bomb = 0, bio = 0, rad = 0)
+	w_class = 3
 	var/has_sensor = 1//For the crew computer 2 = unable to change mode
 	var/sensor_mode = 0
 		/*

code/modules/clothing/head/helmet.dm

@@ -11,6 +11,7 @@
 	heat_protection = HEAD
 	max_heat_protection_temperature = HELMET_MAX_HEAT_PROTECTION_TEMPERATURE
 	siemens_coefficient = 0.7
+	w_class = 3
 
 /obj/item/clothing/head/helmet/warden
 	name = "warden's hat"

code/modules/clothing/head/misc_special.dm

@@ -24,6 +24,7 @@
 	flags_inv = (HIDEMASK|HIDEEARS|HIDEEYES|HIDEFACE)
 	icon_action_button = "action_welding"
 	siemens_coefficient = 0.9
+	w_class = 3
 
 /obj/item/clothing/head/welding/attack_self()
 	toggle()
@@ -125,6 +126,7 @@
 	flags_inv = HIDEMASK|HIDEEARS|HIDEEYES|HIDEFACE
 	var/brightness_on = 2 //luminosity when on
 	var/on = 0
+	w_class = 3
 
 	attack_self(mob/user)
 		if(!isturf(user.loc))

code/modules/clothing/shoes/miscellaneous.dm

@@ -114,12 +114,14 @@
 	icon_state = "slippers"
 	item_state = "slippers"
 	species_restricted = null
+	w_class = 2
 
 /obj/item/clothing/shoes/slippers_worn
 	name = "worn bunny slippers"
 	desc = "Fluffy..."
 	icon_state = "slippers_worn"
 	item_state = "slippers_worn"
+	w_class = 2
 
 /obj/item/clothing/shoes/laceup
 	name = "laceup shoes"