Convert some bools to TRUE/FALSE instead of 1/0. (#11100)

Co-authored-by: Aronai Sieyes <arokha@arokha.com>

code/ATMOSPHERICS/components/unary/cold_sink.dm

@@ -6,8 +6,8 @@
 	desc = "Cools gas when connected to pipe network"
 	icon = 'icons/obj/Cryogenic2_vr.dmi'
 	icon_state = "freezer_0"
-	density = 1
-	anchored = 1
+	density = TRUE
+	anchored = TRUE
 	use_power = USE_POWER_OFF
 	idle_power_usage = 5			// 5 Watts for thermostat related circuitry
 	circuit = /obj/item/weapon/circuitboard/unary_atmos/cooler

code/ATMOSPHERICS/components/unary/heat_exchanger.dm

@@ -3,7 +3,7 @@
 	icon = 'icons/obj/atmospherics/heat_exchanger.dmi'
 	icon_state = "intact"
 	pipe_state = "heunary"
-	density = 1
+	density = TRUE
 
 	name = "Heat Exchanger"
 	desc = "Exchanges heat between two input gases. Setup for fast heat transfer"

code/ATMOSPHERICS/components/unary/heat_source.dm

@@ -6,8 +6,8 @@
 	desc = "Heats gas when connected to a pipe network"
 	icon = 'icons/obj/Cryogenic2_vr.dmi'
 	icon_state = "heater_0"
-	density = 1
-	anchored = 1
+	density = TRUE
+	anchored = TRUE
 	use_power = USE_POWER_OFF
 	idle_power_usage = 5			//5 Watts for thermostat related circuitry
 	circuit = /obj/item/weapon/circuitboard/unary_atmos/heater