Expose loginIndex and otp fields from runescape client

Signed-off-by: Tomas Slusny <slusnucky@gmail.com>

runescape-api/src/main/java/net/runelite/rs/api/RSClient.java

@@ -248,10 +248,18 @@ public interface RSClient extends RSGameEngine, Client
 	@Override
 	void setPassword(String password);
 
+	@Import("otp")
+	@Override
+	void setOtp(String otp);
+
 	@Import("currentLoginField")
 	@Override
 	int getCurrentLoginField();
 
+	@Import("loginIndex")
+	@Override
+	int getLoginIndex();
+
 	@Import("playerOptions")
 	@Override
 	String[] getPlayerOptions();