* resolves oss-fuzz #24399
* clean up some undefined behavior
* fix some UB in mergeQueryHs
* be more defensive
* defensive programming
* fix a _cxsmilesBondIdx bug
* more defensive programming
* backup
* simple first pass, passes all tests
* cleanup a bunch of existing uses
* ensure that we can safely add atoms/bonds while in edit mode
* add context manager on python side
* handle exceptions properly in those
* changes in response to review
* backup
* compiles
* progress, but not there yet
* basics now working
* start towards adding another test
* test having two variation points
* add actual enumeration and the corresponding tests
* docs and cleanup
* cleanups to get the mac build working
* attempt to get win32 dll builds to work
* dlls are fun
* Add FixedMolSizeMolBundle class
* changes in response to review
Also: add warnings for bad input in ParseV3000Array
* a bit of refactoring
* additional testing
* does not work, backup
* LINKNODES work now
* cleanup
* allow silencing reaction validation warnings during initialization
* docs
* fix (and test) handling of empty enumerations
* silence warnings when doing alchemy
* first pass at a Python wrapper for the enumerator
* Add Java wrappers for MolBundle and the MolEnumerator
* cleanup some comment formatting
