add item metadata (for filtering, searching, scanning and other fun reasons)

[matthewbrandt]

Suggestions:

• dimension: [1st,2nd,3rd,4th,5th,6th]
• intensity: [silent, quiet, calm, busy, lively, energetic, hectic]
• vibrance: [1-7]

N.B. Calculations of the attributes will be not made public, but it could be reverse-engineered.

[whitep4nth3r]

• category
• shape
• animal/mineral/vegetable
• irradiated/rotten/fresh

[whitep4nth3r]

Categories added for scanning!