"packs" directory auto-create (#484)

* "packs" directory auto-create

* cleaned indentation in ResourcePack.java

* Cleaned ResourcePack.java

* Another cleanup

I hate editor on github.

* Yet another

* Another indentation cleanup

connector/src/main/java/org/geysermc/connector/utils/ResourcePack.java

@@ -32,7 +32,11 @@ public class ResourcePack {
         }
 
         File directory = new File("packs");
-
+            
+        if (!directory.exists()) {
+            directory.mkdir();
+        }
+        
         for(File file : directory.listFiles()) {
             if(file.getName().endsWith(".zip") || file.getName().endsWith(".mcpack")) {
                 ResourcePack pack = new ResourcePack();