* Fixes for canonicalization, and stereochemistry
* chnages from code review
* test that was omitted for canon correction
* PR review changes
* changes as per PR review
* missed file checkint to make PR tests compile
* PR conflict resolution
* change to fix PR buld errors (hopefully)
* line delete to force re-running of tests
* changes as per PR review
* resolve merge conflicts with master
* some suggestions
* revert chirality modifications when sanitization isn't being done
* addl changes: no stereo percept when no sanitize
* missing test expected files added
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Co-authored-by: greg landrum <greg.landrum@gmail.com>