Add a pay what you want option for plugins

As a plugin developer, the current system of a static price is alright, but I would love to see a pay what you want option for buying plugins. Instead of the current system, you could enable a toggle that switches to a pay what you want system and you can set a minimum price that a plugin can sell for. With this pay what you want system, developers would be able to pay as much (or as little) as they want for a plugin. This would really support plugin creators, especially if people find it as a...