* Add BloodstreamComponent and BloodstreamSystem
New component for metabolizing reagents that other organs like the stomach pass their input reagents to.
* Change StomachComponent to put ingested reagents in bloodstream after delay
Now StomachComponent does not metabolize any reagents. Instead, it tracks how long each reagent has been inside it, and once they pass "digestionDelay" they'll be put inside the bloodstream, where the bloodstream will handle metabolism of the reagent.
* Add reagent injectors
Injects reagents straight into the bloodstream when used on mobs with bloodstreams. Also allows draw/inject from beakers. Does not support drawing blood/reagents from the bloodstream yet.
* Address code review
Make use of `Loc` static class instead of using `ILocalizationManager`. Localize InjectorToggleMode enum properly.
* Add chemistry sprites and move existing ones into RSIs
There are already a few chemistry sprites that are sitting loose in folders. More of them will be needed soon such as pill and other chem machine sprites. This adds RSIs with chemistry sprites from CEV-Eris and moves existing ones into the relevant RSIs.
* Separate machine screens into their own sprites.
Separates screens and machines into their own sprites.
