Fireplace Lib

Add functions to ConfigStateManager and SaveDataStateManager to safely delete data Fix memory leak caused by SaveDataStateManager#tearDown not properly tearing down autosave timers Fix SaveTimer#register and SaveTimer#unregister not giving any warning if no Runnables are provided. Bring in the InventorySearcher interface from Overlord, with some adjustments for clarity and reusability Add Inventory Arrangement interface to swap slot contents Improve disabled option hiding on cloth config screens - hidden options no longer leave a space