ASF_LOGGER has started giving warnings for normal behavior

[scottstanie]

This didn't feel quite like a bug, but I'm not sure:
#219 This PR introduced 3-4 ASF_LOGGER.warn calls, so that for a normal search, the library now prints out warnings about timings:

WARNING:asf_search:Query Time Elapsed 9.859012126922607
WARNING:asf_search:Product Subclassing Time 0.10550212860107422
WARNING:asf_search:Page Processing Time 2.5033950805664062e-05
WARNING:asf_search:Page Time Elapsed 10.03829550743103

Was this intentional? This seems like at most it would be .info level logging, but probably .debug