Add "Jump while sneaking" checkbox to Parkour

Fixes #456

src/main/java/net/wurstclient/hacks/ParkourHack.java

@@ -11,6 +11,7 @@
 import net.wurstclient.Category;
 import net.wurstclient.events.UpdateListener;
 import net.wurstclient.hack.Hack;
+import net.wurstclient.settings.CheckboxSetting;
 import net.wurstclient.settings.SliderSetting;
 import net.wurstclient.settings.SliderSetting.ValueDisplay;
 
@@ -27,12 +28,20 @@ public final class ParkourHack extends Hack implements UpdateListener
 			"How close Parkour will let you get to the edge before jumping.",
 			0.001, 0.001, 0.25, 0.001, ValueDisplay.DECIMAL.withSuffix("m"));
 
+	private final CheckboxSetting sneak = new CheckboxSetting(
+		"Jump while sneaking",
+		"Keeps Parkour active even while you are sneaking.\n"
+			+ "You may want to increase the \u00a7lEdge \u00a7ldistance\u00a7r"
+			+ " slider when using this option.",
+		false);
+
 	public ParkourHack()
 	{
 		super("Parkour");
 		setCategory(Category.MOVEMENT);
 		addSetting(minDepth);
 		addSetting(edgeDistance);
+		addSetting(sneak);
 	}
 
 	@Override
@@ -54,7 +63,8 @@ public void onUpdate()
 		if(!MC.player.isOnGround() || MC.options.jumpKey.isPressed())
 			return;
 
-		if(MC.player.isSneaking() || MC.options.sneakKey.isPressed())
+		if(!sneak.isChecked()
+			&& (MC.player.isSneaking() || MC.options.sneakKey.isPressed()))
 			return;
 
 		Box box = MC.player.getBoundingBox();