Using annotations to control accessibility of java object in rhino

[821938089]

Add three new annotations (tentative names):
@RhinoRestricted
@RhinoPublic
@RhinoPrivate

Usage:

1. black list mode:
   Methods and fields and constructors marked with the RhinoPrivate annotation are not accessible in Rhino.

public class MyObject {

  String field1 = "field1";
  @RhinoPrivate
  String field2 = "field2";

  public String method1() {
    return "method1";
  }

  @RhinoPrivate
  public String method2() {
    return "method2";
  }

}

3. white list mode
   All methods and fields and constructors of a class marked with the RhinoRestricted annotation cannot be accessed within Rhino unless marked RhinoPublic.

@RhinoRestricted
public class MyObject {

  @RhinoPublic
  String field1 = "field1";
  String field2 = "field2";

  @RhinoPublic
  public String method1() {
    return "method1";
  }

  public String method2() {
    return "method2";
  }

}