Store Command with Buy/Sell Command Logic

[ferociouskyle]

This issue is a break out from the Basic Economy Commands. While developing, some potential additions were discovered.

Below is what needs to be completed for the commands to be more complete and better for the game:

• A store command that has multiple pages to show all the items we are selling in the store. (ie seeds, tools upgrades, special items or item of the day)
• Ability to use buy/sell command with ID or Name.
• A confirmation that the user wants to sell the item, buying to be discussed.
• A base price for most items, or some logic to determine how much value an item has so how much to offer the seller.
• Lastly, an algorithm that will increase the price of an item in the store based on stock left (less product left, higher price)

These items are set to change based on discussion.