/swm import fails if any world region files are 0 in size

[seb303]

Log message is:

[16:27:20 INFO]: [SWM] Failed to import world test. Stack trace:
[16:27:20 WARN]: java.io.EOFException
[16:27:20 WARN]:        at java.base/java.io.DataInputStream.readInt(DataInputStream.java:398)
[16:27:20 WARN]:        at slimeworldmanager-plugin-2.7.0-SNAPSHOT.jar//com.grinderwolf.swm.plugin.world.importer.WorldImporter.loadChunks(WorldImporter.java:163)
[16:27:20 WARN]:        at slimeworldmanager-plugin-2.7.0-SNAPSHOT.jar//com.grinderwolf.swm.plugin.world.importer.WorldImporter.readFromDirectory(WorldImporter.java:68)
[16:27:20 WARN]:        at slimeworldmanager-plugin-2.7.0-SNAPSHOT.jar//com.grinderwolf.swm.plugin.SWMPlugin.importWorld(SWMPlugin.java:414)
[16:27:20 WARN]:        at slimeworldmanager-plugin-2.7.0-SNAPSHOT.jar//com.grinderwolf.swm.plugin.commands.sub.ImportWorldCmd.lambda$onCommand$0(ImportWorldCmd.java:69)
[16:27:20 WARN]:        at org.bukkit.craftbukkit.v1_17_R1.scheduler.CraftTask.run(CraftTask.java:101)
[16:27:20 WARN]:        at org.bukkit.craftbukkit.v1_17_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:57)
[16:27:20 WARN]:        at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22)
[16:27:20 WARN]:        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
[16:27:20 WARN]:        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
[16:27:20 WARN]:        at java.base/java.lang.Thread.run(Thread.java:831)

If one simply deletes the 0 size region files then it imports the world just fine. SWM should ignore 0 size files rather than cause an exception.

Running Paper version git-Paper-408 (MC: 1.17.1) (Implementing API version 1.17.1-R0.1-SNAPSHOT)
Plugin is slimeworldmanager-plugin-2.7.0-SNAPSHOT