[COOK-4486] - Add ChefSpec matchers

- Add create_lvm_logical_volume, nothing_lvm_logical_volume (since
 logical_volume can be a sub-resource of lvm_volume_group),
 create_lvm_physical_volume, and create_lvm_volume_group ChefSpec
 matchers.
- This is for https://tickets.opscode.com/browse/COOK-4486.