[orders] improve orders library with new findings

[myk002]

• remove platinum weapons from orders and remove checks for platinum from other weapon orders
• move preference for steel above silver for blunt weapons in orders
• change leather cloaks to silk in orders
• change leather shields to wood in orders
• increase archer uniform orders to keep 10 in stock
• remove easy meals from orders (if lavish meals do in fact produce 4x the number of meals)

Fixes #3317
Completes orders updates from #3367