Directory-based audio plugins can't be disabled

[DropSnorz]

.vst3 or .au file can't be disabled if it's a diretory.

84936 ERROR c.o.core.services.PluginService - Plugin can't be disabled
java.io.IOException: Source 'C:\Users\Arthur\VST\hello.vst3' is a directory
	at org.apache.commons.io.FileUtils.moveFile(FileUtils.java:2009)
	at com.owlplug.core.services.PluginService.disablePlugin(PluginService.java:93)
	at com.owlplug.core.controllers.PluginInfoController.lambda$showDisableDialog$10(PluginInfoController.java:273)

Reported by daveduffus on kvr thread

[DropSnorz]

Fixed on version 1.18.0