Create release notes markdown output for diff command (#605)

* Create release notes markdown output for `diff` command

* update gitignore

* reverted

* formatted

* whitespace removed

* Added ChangeHandler to generate diff markdown

* formatted md

* formatted

* refactor

* removed debugger

* old and new added

* new columns added

* removed debugger

* linted

* removed debuggers

* Streaming to markdown

* formatted

* formatted

* Added more changes

* refactor

* temporarily keep duplicate fns

* Added comment

* New changes added

* constants handled

* formatted

* cleanup

* corrected test

* renames; shuffling of code and filtered out "obsolete"s where needed

* label changed

* minor typo

* addressed comments

* formatted and made new KGCL complaint

* refactor complete

* cleanup

* new strategy for obsoletions

* updated kgcl  schema

* latest version of kgcl-schema

* accommodate TSV format and try to fox testes with kgcl change

* formatted and added oio:hasRelatedSynonym

* formatted

* formatted

* removed unnecessary changes made earlier

* added logic for Unobsoletions

* minor var refator

* cleanup

* temp fix

* formatted

* results match release notes

* results match release notes

* added another condition for new node

* commented last edit

* Added todo comment

* comment import

* changed column formats

* formatted

* another column format

* changes based on Nico's request

* tests should pass and minor typo

* NodeMove title changed

* refactor title

* formatted

* update gitignore

* poetry lock

* fixed mapping changes

* added predicates again

* just formatted

* fixed all conflict resolution mishaps

.gitignore

@@ -30,3 +30,5 @@ tests/input/fhirjson_conf.json
 oak_hp.profile
 oak_semsimian_hp.profile
 notebooks/demo.tsv
+tests/input/obo_conf.yaml
+tests/input/obojson_conf.yaml