Added new permission system

src/main/java/org/bukkit/permissions/ServerOperator.java

@@ -0,0 +1,22 @@
+package org.bukkit.permissions;
+
+import org.bukkit.entity.Player;
+
+/**
+ * Represents an object that may become a server operator, such as a {@link Player}
+ */
+public interface ServerOperator {
+    /**
+     * Checks if this object is a server operator
+     *
+     * @return true if this is an operator, otherwise false
+     */
+    public boolean isOp();
+
+    /**
+     * Sets the operator status of this object
+     *
+     * @param value New operator value
+     */
+    public void setOp(boolean value);
+}