Add cornflower xp

src/main/java/com/gmail/nossr50/config/hocon/experience/ConfigExperienceHerbalism.java

@@ -73,6 +73,7 @@ public class ConfigExperienceHerbalism {
         HERBALISM_EXPERIENCE_DEFAULT.put(Material.RED_TULIP.getKey().toString(), 150);
         HERBALISM_EXPERIENCE_DEFAULT.put(Material.ROSE_BUSH.getKey().toString(), 50);
         HERBALISM_EXPERIENCE_DEFAULT.put(Material.SUNFLOWER.getKey().toString(), 50);
+        HERBALISM_EXPERIENCE_DEFAULT.put(Material.CORNFLOWER.getKey().toString(), 150);
 
         /* WEEDS */
         HERBALISM_EXPERIENCE_DEFAULT.put(Material.FERN.getKey().toString(), 10);