*Adds a new plant: The singulo potato. You can crush it in your hand to create a singularityhammer vortex effect that will pull nearby items and people to you! Range and stuntime is dependent on potency. Stun is capped at 4 ticks.

TODO: Add the seeds, make new sprites. The object itself works already though!

*Makes blood tomatoes spawn gibs on squashing.

TODO: Make it dependent on potency.

*Adds a new plant: The spiderplant. The spiderplant mutates from eggplants and yields spiderpods. Spiderpods have 3 uses:
1. You can grind them to get poisons.
2. You can cut them into pieces to get spidermeat for cooking. The amount of meat depends on the potency of the pod. The meat also includes all the reagents that were in the pod when cut!
3. You can pry them open to possibly release a spiderling. The chance of it working is pretty low and even at potency 100 it is only 60% so you better work hard if you want to fill the station with spiders!

Spiderling spawning and attempted spawning with the pods is logged for admins too.

TODO: Needs sprites.
*Moved the spiderpod and singulo potato code to hydroitemcode.dm.

*Added logging to the singulopotato effect. It will also report its location!

*There's placeholder sprites for now in case you want to test this out.

*Added new stuff to walking mushrooms. They can now reach higher levels, there's a hardcap on their damage and health, they can now level up when fighting lower level mushrooms...

But most importantly: You can now feed them killer tomatoes(placeholder for now) to cause them to go on a rampage! During a rampage, they will attack everyone including humans! They will still fight other mushrooms but won't devour them so no more level ups.
*Adds a new potato seedpack icon. Just a "P" on the seedpack was boring looking.

*Adds spiderpod and singularity sprites for plant, seedpack and harvested item.

*Removed all mushroom changes, will be pushed in a separate PR.
*Removes the mushroom thing for real.
Merge pull request #942 from Tokiko1/plantstuffs1

New plants