constructionList wait for resource

[BigMax23]

Describe the solution you'd like
It would be worthwhile to extend the constructionList with a function to wait until the resource is mined. For example. I have a marble island where I want to level up a building that requires wood and marble. I don't want to send extra resource here, just wait until the island is produced. When enough is available to build a level, start it, then wait.