api: add methods to get selected item

runelite-api/src/main/java/net/runelite/api/Client.java

@@ -1883,6 +1883,18 @@ public interface Client extends GameEngine
 	 */
 	void setSpellSelected(boolean selected);
 
+	/**
+	 * Get if an item is selected with "Use"
+	 * @return 1 if selected, else 0
+	 */
+	int getSelectedItem();
+
+	/**
+	 * If an item is selected, this is the item index in the inventory.
+	 * @return
+	 */
+	int getSelectedItemIndex();
+
 	/**
 	 * Returns client item composition cache
 	 */