Added REI module

 Changes to be committed:
	modified:   .gitignore
	modified:   conda.recipe/meta.yaml
	modified:   docs/conf.py
	modified:   docs/index.rst
	new file:   docs/notebooks/receiver_efficiency_index.ipynb.rst
	modified:   docs/notebooks/residence_index.ipynb.rst
	new file:   docs/receiver_efficiency_index.rst
	modified:   py_notebooks/detection_compression.ipynb
	modified:   py_notebooks/filter_detections.ipynb
	new file:   py_notebooks/receiver_efficiency_index.ipynb
	modified:   resonate/__init__.py
	modified:   resonate/receiver_efficiency.py
	modified:   setup.py