Create short-wavelength layer in `product`

[scottstanie]

Steps to adding this in:

• [x] Add a wavelength_cutoff parameter to the AlgorithmParameters part of the configuration. Set default to 50 km
• [x] after running the dolphin portion, add a call to filter_long_wavelength here
• [x] create another layer in the product_info module
• [x] Save the filtered data here in product.py