Recursively traverse a directory for files

[Scott Stafford]

As a developer
I want the EnhancedResourcesItemReader to "Recursively traverse a directory to read in files"
So that I can read all the subfolders under a directory.

Note that this should be the default behavior for this ItemReader.

Need to modify the EnhancedResourcesItemReader to recursively traverse a directory of files. Currently it will only read the files in the top level directory.

Make sure to create a test for this new capability.

Existing test class: EnhancedResourcesItemReaderTest.java

User the MapFileVisitor to traverse the directory

Make sure the test class is using the TemporaryFolder feature of JUnit.

[Glenn Marintes]

Working on this.