Clean up output

This just goes through the logging calls and reassigns them. The basic idea is that info should be used sparingly and for things we really want the user to read, warning should alert users that something bad might be happening, and the rest should be debug.

As a reminder, you can get the full output with the -v flag.

examples/injection_examples/basic_tutorial.py

@@ -74,4 +74,4 @@ result = tupak.run_sampler(likelihood=likelihood, priors=priors, sampler='dynest
 
 # make some plots of the outputs
 result.plot_corner()
-print(result)
+