Import/Export House Function

The old map editor allowed us to save our houses into a file and reload them into the map editor to continue editing. As one who likes to make houses on the side, I would love to have my own collection of houses to choose from.

For that reason, I’m going to suggest reintroducing the option of saving a house to our computer (export) and being able to reload our house map onto PMU again (import). It would be nice to cycle through houses for each season without having to worry about losing a house in the process.