Add Basketball and Basketball Shorts

This PR contains:

- A basketball, which spawns with children and sporting things. It's a high-quality indoors basketball, so it can be made out of leather.
- Basketball shorts, which spawn in generic places (very light, not warm, but covers more than kakhi shorts)
- Both will be used in the basketball player profession, following shortly
- For numbers I used existing items, I believe they should be fine. 
- For spawn-frequency I was not very generous, perhaps should be increased a little


And here I thought Snaaty was referring to the stereotypical Black male criminal, as portrayed by Team Purple from GTA San Andreas.  (As in the "Ballas", etc).

Hindu death cults are much better, though then they'd be capital Thugs.