Repository reorganisation

Unified kotlin and java into just src/main
Unified the rs09 and core packages
Took all content out of the core package, and placed it into the new content package
Reorganised all source code relating to content to be easier to find and explore

Server/src/main/content/data/consumables/effects/HealingEffect.java

@@ -0,0 +1,20 @@
+package content.data.consumables.effects;
+
+import core.game.node.entity.player.Player;
+import core.game.consumable.ConsumableEffect;
+
+public class HealingEffect extends ConsumableEffect {
+    int amt;
+    public HealingEffect(int amount){
+        this.amt = amount;
+    }
+    @Override
+    public void activate(Player p) {
+        p.getSkills().heal(amt);
+    }
+
+    @Override
+    public int getHealthEffectValue(Player player) {
+        return amt;
+    }
+}