runelite-api: Add missing documentation

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

@@ -26,14 +26,38 @@ package net.runelite.api;
 
 import lombok.Data;
 
+/**
+ * A menu entry in a right-click menu.
+ */
 @Data
 public class MenuEntry
 {
+	/**
+	 * The option text added to the menu (ie. "Walk here", "Use").
+	 */
 	private String option;
+	/**
+	 * The target of the action (ie. Item or Actor name).
+	 * <p>
+	 * If the option does not apply to any target, this field
+	 * will be set to empty string.
+	 */
 	private String target;
+	/**
+	 * An identifier value for the target of the action.
+	 */
 	private int identifier;
+	/**
+	 * The action the entry will trigger.
+	 */
 	private int type;
+	/**
+	 * An additional parameter for the action.
+	 */
 	private int param0;
+	/**
+	 * A second additional parameter for the action.
+	 */
 	private int param1;
 
 	@Override