[Feature] Clear Corn, Dogwood, H Cordata, Plasma Grapes, HYPattacked_proc changes

[UrsulaMejor]

Implements:
- Clear Corn (Contains Ethanol)
- Dogwood Tree (Bark Bark Awoo)
- Houttyunia Cordata (Fish Mint, Contains Mercury)
- Wholetuna Cordata (Literal Fish Mint)
- Plasgrapes (Contains Plasma)
- Adjusted HYPattacked_proc calls in plantpot.dm to allow for mutant overrides

prpr: UM-034
https://github.com/goonstation/goonstati...6/pull/183

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dmis:
https://cdn.discordapp.com/attachments/6...roduce.dmi
https://cdn.discordapp.com/attachments/6...utants.dmi
https://cdn.discordapp.com/attachments/6...ponics.dmi
https://cdn.discordapp.com/attachments/6...romisc.dmi

[AwkwardDryad]

!yes!

[UrsulaMejor]

pushed an edit:

- changed how the Wholetuna Cordata spawns its fish because I didn't like it
- added /obj/item/fish/random to facilitate that

[saccharineChampion]

Yes good plants

[Adhara In Space]

fish slapp

[BLooDHoG]

More plants with different chemicals in them will make more interesting splicing opportunities

There's fish everywhere. Fish everywhere...

[UrsulaMejor]

I have split out the .dmi's on this patch to make it easier to merge

[Maven]

Plaaaaant.

Yes please.

[pali6]

Merged except for plasma grapes which I was requested not to merge by Urs.