feat: setting up bibcode creation, packaging

 	modified:   README.md
 	new file:   adsenrich/__init__.py
 	new file:   adsenrich/bibcode_data/issn2bibstem.txt
 	new file:   adsenrich/bibcode_data/name2bibstem.txt
 	new file:   adsenrich/bibcodes.py
 	new file:   adsenrich/data.py
 	new file:   adsenrich/utils.py
 	new file:   requirements.txt
 	new file:   setup.py

Author: seasidesparrow

README.md

@@ -1,2 +1,7 @@
-# ADSImportAugmenter
-Data augmentation for the new ingest workflow
+# ADSImportEnrichment
+ADS Internal package that takes data in the form of an 
+`adsabs/ingest_data_model` object and augments or enriches it in some way.
+
+As of 2022 Sep 22, this package can only generate classic bibcodes.
+
+Matthew Templeton, ADS