hiscores: add nightmare boss

http-api/src/main/java/net/runelite/http/api/hiscore/HiscoreResult.java

@@ -92,6 +92,7 @@ public class HiscoreResult
 	private Skill kreearra;
 	private Skill krilTsutsaroth;
 	private Skill mimic;
+	private Skill nightmare;
 	private Skill obor;
 	private Skill sarachnis;
 	private Skill scorpia;
@@ -237,6 +238,8 @@ public class HiscoreResult
 				return krilTsutsaroth;
 			case MIMIC:
 				return mimic;
+			case NIGHTMARE:
+				return nightmare;
 			case OBOR:
 				return obor;
 			case SARACHNIS:

http-api/src/main/java/net/runelite/http/api/hiscore/HiscoreResultBuilder.java

@@ -117,6 +117,7 @@ class HiscoreResultBuilder
 			hiscoreResult.setKreearra(skills.get(index++));
 			hiscoreResult.setKrilTsutsaroth(skills.get(index++));
 			hiscoreResult.setMimic(skills.get(index++));
+			hiscoreResult.setNightmare(skills.get(index++));
 			hiscoreResult.setObor(skills.get(index++));
 			hiscoreResult.setSarachnis(skills.get(index++));
 			hiscoreResult.setScorpia(skills.get(index++));

http-api/src/main/java/net/runelite/http/api/hiscore/HiscoreSkill.java

@@ -96,6 +96,7 @@ public enum HiscoreSkill
 	KREEARRA("Kree'Arra", BOSS),
 	KRIL_TSUTSAROTH("K'ril Tsutsaroth", BOSS),
 	MIMIC("Mimic", BOSS),
+	NIGHTMARE("Nightmare", BOSS),
 	OBOR("Obor", BOSS),
 	SARACHNIS("Sarachnis", BOSS),
 	SCORPIA("Scorpia", BOSS),