Da huge stonking cans update! 2025 edition. (#90318)

## About The Pull Request


![bild](https://github.com/user-attachments/assets/d3643592-4907-4d01-8fc6-3d613aa3e772)

![bild](https://github.com/user-attachments/assets/d859e878-72e3-4200-8c1c-8521e5c499d2)

## This PR:

*  Adds a new type of reagent container; the jerrycan!

* Replaces the nutrient bottles in the nutrimax with cans.

* Adds some prefilled cans to the maint loot table.

### Can knowledge

* Jerrycans can hold a hold an incredible 200u.
* They can be printed roundstart at the auto and protolathes for 2
sheets of plastic.
* They are balanced by being bulky.
* They can be thrown around by without spilling their contents.
* They are not beakers and cannot be used to make grenades.

The upfront cost associated with buying nutrients will be greater, but
it will be cheaper per unit.
I would actually like to charge more but this is not really feasible
right now due to the heavy department discount.

#### Maint loot additions
The new maint loot cans have a low weight so far, collectively appearing
half as often as basic healing items.

The cans that have been added to maint loot are as follows:

* space cleaner ( weight: 2)
* oil (weight: 2)
* diethylamine (weight : 1)
* phlogiston (weight: 1)

#### Reagent overlay code

I have added an option to have reagent containers use a colour matrix to
lighten and increase the contrast of the reagent filling overlay in an
attempt to prevent dark coloured reagents from completely obliterating
all contrast.
The math may need to be tweaked but it should offer some improvement
provided the filling overlay has some contrast to begin with.

## Why It's Good For The Game

The jerrycan is not only a flavourful & setting appropriate way to store
reagents, it also offers several design benefits due to its unique
combination of high roundstart capacity and bulky size.

* It prevents one coworker from hogging a shared reagent container.
* The high volume eases grinding and mixing.
* It allows reagents to be stolen or borrowed due to being stored
outside the safety of an inventory.
* The highly visible inhand sprite allows you to see who is holding or
transporting reagents.
* The smart cap flag increases quality of life by allowing you to throw
the container without spilling.
* It reduces the tedium associated with dispensing and throwing away
botany nutrient bottles, encouraging refilling.
* Bulky size prevent players from looting the can unless it is something
they really want.
* Comes with a large number of visual customisation options for coders
who with to add new variants.

## Throwing away the little nutrient bottles when doing botany sucks!

## Changelog

🆑
add: Added a new type of reagent container; the jerrycan.
add: Added some prefilled jerrycans to maint loot.
balance: Botany nutrients now come in bulk packaging.
/🆑

---------

Co-authored-by: LemonInTheDark <58055496+LemonInTheDark@users.noreply.github.com>

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

@@ -29,6 +29,7 @@
 		"dropper",
 		"pillbottle",
 		"xlarge_beaker",
+		"jerrycan",
 	)
 	experiments_to_unlock = list(
 		/datum/experiment/autopsy/human,