[FEATURE] Trades involving custom commands

[Svish]

Is your feature request related to a problem?

With custom commands, it could be possible to create server trades based on custom commands. These could for example be used for paid teleporters, using the /experience command to trade for or with experience, changing to change the weather, or things like that.

Describe the solution you'd like.

Not sure what would work best. It could be a completely separate thing, like like [cTrade]. But also could be handy if it was just part of the existing [iTrade]. For example by allowing something like /ts setProduct ...some custom command, or setCost. Not sure how custom commands would work together with this. I know with command blocks you can have conditionals for example, which would be needed to work here too (to check if the user has enough XP to pay, for example).

Describe alternatives you've considered.

The current easy setup with items in and items out, is really nice, but limits trades to just that (obviously). So, only alternative currently is to hack stuff with command blocks and currency high scores and stuff like that instead. Would be very nice if "custom command trading" was just included in this plugin, but if at all possible it should not make the existing functionality (at least for regular users) more complex.

Agreements

• [X] I have searched for and ensured there isn't already an open issue regarding this.
• [X] I have ensured the feature I'm requesting isn't already in the latest supported TradeShop build.
• [X] I have asked the Developers and they have confirmed that it is not already in development.

Other

No response