* first crude pass
* fix a deprecation
* change naming scheme, support bools
* add standalone function
* add a default value for missings
* support long lines
* stupid typo
* make operator[] work
* revisit missing value handling
* modify missing value handling
* switch to an alternate scheme for specifying missing values
* clang-format
* First pass at property list parser
still needs more tests
* add test for processMolPropertyLists
* get this working as part of the ForwardSDMolSupplier
* first pass at python wrappers and tests
* clang-format run
* add creation of property lists at the mol level
* wrap long lines on output
* remove PoC implementation
* fix python wrappers
* remove out-of-date reference to the Python PoC
* changes in response to review
