Adds directional blood trails

The blood trails now follow the path the body has taken and players can
very easily make out said path.
Heavily damaged corpses will have a much thicker blood trail than
corpses with some brute damage. At the moment, trails overwrite
eachother and a placeholder icon set is used for alien heavy blood
trails.
Update bullets.dm
Update bullets.dm
Update shotgun.dm
Update bullets.dm
Update syringes.dm
Update bullets.dm
Removed notele module from designs
Merge pull request #1 from tgstation/master

Merging with main /tg/
Makes nuclear gun really useful

Now nucgun has reputation of shitty gun that will weaken you with radiation mid-battle. This update makes nucguns useful even without CE's RIG or radsuit.
Makes Supply Pack datums no longer garbage collect. Prevents them from making artifacts like mulebot #3. Fixes issue #137.

Moves the supply shuttle controller to the controller folder and adds its creation to the new proc of the master controller.
Also, makes the supply shuttle make supply packs on new instead process.
Merge branch 'master' of https://github.com/tgstation/-tg-station into Supplypacks
blood trails now stack

--DO NOT MERGE STILL WIP--
Makes blood trails use overlays, the overlays are contained in a holder
object. DNA is now properly added to them.

todo: redo light, xeno light and xeno heavy trails. help of spriters is
welcome.
No more SEMICOLONS
Moves some datacore code into datacore.dm from other .dm's
AI Photography, with extensions
AI Photography, with extensions
Merge branch 'AIphotography' of https://github.com/AndroidSFV/-tg-station into AIphotography
Removes bad WIP I had commented out
Changelog