Implement blast furnace ore shop

What have you done in this MR?

• Blast Furnace ore shop starts at 0 stock
• shop is restocked with 30 of a random ore every 10 minutes.
• max stock is 100 for any given ore (excluding players buying/selling)
• shop stock is shared amongst all players regardless of whether or not personalized shops are enabled

I am aware this will need to have conflicts with !1075 (merged) resolved once it is merged. I will resolve those conflicts.

Are there any tricky things testers should keep an eye out for?

• No

• Yes, as follows:

• I have tested these changes thoroughly.

• This requires extra testing due to changes to architecture or other similarly risky changes.

• I used the Thanos Tool for any JSON edits where possible, and have attached screenshots of any changes.

• I acknowledge that this contribution will be released under the AGPL license.