Implement Bayesian mosaicing

resolve/__init__.py

resolve/direction.py

resolve/fits.py

resolve/likelihood.py

resolve/mosaicing/__init__.py

resolve/mosaicing/single_dish_response.py

resolve/mosaicing/sky_slicer.py

resolve/observation.py

resolve/primary_beam.py

resolve/response.py

resolve/simple_operators.py

test/test_general.py