Added new methods to Server, Player and OfflinePlayer for banning and unbanning

By: Dinnerbone <dinnerbone@dinnerbone.com>

paper-api/src/main/java/org/bukkit/Bukkit.java

@@ -240,4 +240,8 @@ public final class Bukkit {
     public static void unbanIP(String address) {
         server.unbanIP(address);
     }
+    
+    public Set<OfflinePlayer> getBannedPlayers() {
+        return server.getBannedPlayers();
+    }
 }

paper-api/src/main/java/org/bukkit/OfflinePlayer.java

@@ -16,4 +16,18 @@ public interface OfflinePlayer extends ServerOperator {
      * @return Player name
      */
     public String getName();
+
+    /**
+     * Checks if this player is banned or not
+     *
+     * @return true if banned, otherwise false
+     */
+    public boolean isBanned();
+
+    /**
+     * Bans or unbans this player
+     *
+     * @param banned true if banned
+     */
+    public void setBanned(boolean banned);
 }

paper-api/src/main/java/org/bukkit/Server.java

@@ -407,4 +407,11 @@ public interface Server {
      * @param address IP address to unban
      */
     public void unbanIP(String address);
+
+    /**
+     * Gets a set containing all banned players
+     *
+     * @return Set containing banned players
+     */
+    public Set<OfflinePlayer> getBannedPlayers();
 }