Advanced statistics on Profit Margin Calculator

[ajaxify]

Would be helpful to see some other statistics on the Profit Margin page, including:

• Avg daily or weekly volume in Jita (or configurable trade hub)
• Product of the weekly sales number and the expected profit to estimate total sales volume.
• Estimate of isk/slot-hr

To avoid a "wall of numbers" problem:

• Advanced statistics page
• Columns selectable as part of the config

Original discord convo: https://discord.com/channels/773370689376878592/781881817439404032/824711692104761385

[Ravworks]

Added a daily market volume (average over the last week), and a isk/hour column.

Decided to just make the table wider for now.