virtualenv provider should create resource directory recursively

[jwmarshall]

The virtualenv provider should recursively create the directory for the resource path. Otherwise Chef::Exceptions::EnclosingDirectoryDoesNotExist is thrown.

[coderanger]

This was already submitted at #71 and I'll close it for the same reason. Using the recursive option is not idempotent due to not specifying permissions and owners for the magically created directories. Your recipe code should create needed directories.

[jwmarshall]

Sorry I didn't see the previous issue. Thank you.