menuentryswapper: add checks to ensure when a hotkey is released, swaps get removed. (#1450)

* menuentryswapper: add checks to ensure when a hotkey is released, swaps get removed.

* menuentryswapper: convert priority entry splitter to a list rather than map.

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

@@ -1023,6 +1023,11 @@ public interface Client extends GameShell
 	 */
 	int getKeyboardIdleTicks();
 
+	/**
+	 * Returns an array of booleans relating to keys pressed.
+	 */
+	boolean[] getPressedKeys();
+
 	/**
 	 * Changes how game behaves based on memory mode. Low memory mode skips
 	 * drawing of all floors and renders ground textures in low quality.
@@ -1755,4 +1760,4 @@ public interface Client extends GameShell
 	 * Returns the max item index + 1 from cache
 	 */
 	int getItemCount();
-}
+}