Ports IV bags from TG

Ports the iv bag portion of https://github.com/tgstation/tgstation/pull/44531/files from tg.

code/modules/food_and_drinks/kitchen_machinery/smartfridge.dm

@@ -463,7 +463,7 @@
 		return TRUE
 	if(!O.reagents || !O.reagents.reagent_list.len) // other empty containers not accepted
 		return FALSE
-	if(istype(O, /obj/item/reagent_containers/syringe) || istype(O, /obj/item/reagent_containers/glass/bottle) || istype(O, /obj/item/reagent_containers/glass/beaker) || istype(O, /obj/item/reagent_containers/spray) || istype(O, /obj/item/reagent_containers/medspray))
+	if(istype(O, /obj/item/reagent_containers/syringe) || istype(O, /obj/item/reagent_containers/glass/bottle) || istype(O, /obj/item/reagent_containers/glass/beaker) || istype(O, /obj/item/reagent_containers/spray) || istype(O, /obj/item/reagent_containers/medspray) || istype(O, /obj/item/reagent_containers/chem_pack))
 		return TRUE
 	return FALSE
 

code/modules/reagents/reagent_containers/chem_pack.dm

@@ -0,0 +1,51 @@
+/obj/item/reagent_containers/chem_pack
+	name = "intravenous medicine bag"
+	desc = "A plastic pressure bag, or 'chem pack', for IV administration of drugs. It is fitted with a thermosealing strip."
+	icon = 'icons/obj/bloodpack.dmi'
+	icon_state = "chempack"
+	volume = 100
+	reagent_flags = OPENCONTAINER
+	spillable = TRUE
+	obj_flags = UNIQUE_RENAME
+	resistance_flags = ACID_PROOF
+	var/sealed = FALSE
+
+/obj/item/reagent_containers/chem_pack/on_reagent_change(changetype)
+	update_icon()
+
+/obj/item/reagent_containers/chem_pack/update_icon()
+	cut_overlays()
+
+	var/v = min(round(reagents.total_volume / volume * 10), 10)
+	if(v > 0)
+		var/mutable_appearance/filling = mutable_appearance('icons/obj/reagentfillings.dmi', "chempack1")
+		filling.icon_state = "chempack[v]"
+		filling.color = mix_color_from_reagents(reagents.reagent_list)
+		add_overlay(filling)
+
+/obj/item/reagent_containers/chem_pack/AltClick(mob/living/user)
+	if(user.canUseTopic(src, BE_CLOSE, NO_DEXTERY) && !sealed)
+		if(iscarbon(user) && (HAS_TRAIT(user, TRAIT_CLUMSY) && prob(50)))
+			to_chat(user, "<span class='warning'>Uh... whoops! You accidentally spill the content of the bag onto yourself.</span>")
+			SplashReagents(user)
+			return
+		else
+			DISABLE_BITFIELD(reagents.reagents_holder_flags, OPENCONTAINER)
+			ENABLE_BITFIELD(reagents.reagents_holder_flags, DRAWABLE |INJECTABLE )
+			spillable = FALSE
+			sealed = TRUE
+			to_chat(user, "<span class='notice'>You seal the bag.</span>")
+
+
+/obj/item/reagent_containers/chem_pack/examine()
+	. = ..()
+	if(sealed)
+		. += "<span class='notice'>The bag is sealed shut.</span>"
+	else
+		. += "<span class='notice'>Alt-click to seal it.</span>"
+
+
+obj/item/reagent_containers/chem_pack/attack_self(mob/user)
+	if(sealed)
+		return
+	..()

code/modules/research/designs/medical_designs.dm

@@ -212,6 +212,16 @@
 	category = list("Medical Designs")
 	departmental_flags = DEPARTMENTAL_FLAG_MEDICAL
 
+/datum/design/chem_pack
+	name = "Intravenous Medicine Bag"
+	desc = "A plastic pressure bag for IV administration of drugs."
+	id = "chem_pack"
+	build_type = PROTOLATHE
+	departmental_flags = DEPARTMENTAL_FLAG_MEDICAL
+	materials = list(/datum/material/plastic = 2000)
+	build_path = /obj/item/reagent_containers/chem_pack
+	category = list("Medical Designs")
+
 /datum/design/cloning_disk
 	name = "Cloning Data Disk"
 	desc = "Produce additional disks for storing genetic data."

code/modules/research/techweb/nodes/biotech_nodes.dm

@@ -5,7 +5,7 @@
 	display_name = "Biological Technology"
 	description = "What makes us tick."	//the MC, silly!
 	prereq_ids = list("base")
-	design_ids = list("medicalkit", "chem_heater", "chem_master", "chem_dispenser", "sleeper", "vr_sleeper", "pandemic", "defibrillator", "defibmount", "operating", "soda_dispenser", "beer_dispenser", "healthanalyzer", "blood_bag", "bloodbankgen", "telescopiciv", "medspray","genescanner")
+	design_ids = list("medicalkit", "chem_heater", "chem_master", "chem_dispenser", "sleeper", "vr_sleeper", "pandemic", "defibrillator", "defibmount", "operating", "soda_dispenser", "beer_dispenser", "healthanalyzer", "blood_bag", "bloodbankgen", "telescopiciv", "medspray","genescanner","chem_pack")
 	research_costs = list(TECHWEB_POINT_TYPE_GENERIC = 2500)
 
 /datum/techweb_node/adv_biotech