PluginManager: Reverse the loading of plugins.

When loading plugins in the default order, lets say
Wintertodt-0.0.1.jar
Wintertodt-0.0.2.jar
Wintertodt-0.0.3.jar

It would load 0.0.1 then detect 0.0.2 and 0.0.3 as duplicates.

By reversing this it would load the newest one and detect the old ones as duplicate.

runelite-client/src/main/java/net/runelite/client/plugins/ExternalPf4jPluginManager.java

@@ -125,6 +125,7 @@ class ExternalPf4jPluginManager extends DefaultPluginManager
 		}
 
 		List<Path> pluginPaths = pluginRepository.getPluginPaths();
+		Collections.reverse(pluginPaths);
 
 		if (pluginPaths.isEmpty())
 		{