Copy directories with @venus-resource annotation

[roelrz]

We should enable the capability to copy directories wholesale with the @venus-resource annotation

Let's say we have the following directory structure:

|-foo
  |- data1.txt 
  |- bar
    |- data2.txt
    |- biz
      |- data3.txt

We should be able to have the following annotations at the top of a unit test:

/**
 * @venus-library mocha
 * @venus-resource foo
 * @venus-resource foo/bar
 * @venus-resource foo/bar/biz
 */

If the test is running on http://localhost:2013/venus-core/1, the resources will be available at the following URLs:

• http://localhost:2013/venus-core/sandbox/foo/data1.txt
• http://localhost:2013/venus-core/sandbox/1/foo/bar/data2.txt
• http://localhost:2013/venus-core/sandbox/1/foo/bar/biz/data3.txt