Product inter-dependencies

[bhbraswell]

I think there currently isn't a standard way to indicate that a product to be generated by gips_process depends on an existing product. I'm adding a "products" field to the _products attribute in the custom Data class, right underneath the assets field. e.g.

    'l2chlfill': {
        'description': 'Chlorophyll A Concentration',
        'assets': ['terra', 'aqua'],
        'products': ['l2chlraw'],
        'sensor': 'C'

I'm not sure if there's a better way to do this.

[ircwaves]

Will be looking at fixing this in the AGS fork....if it gets well sorted, maybe it can make it back here.