* start MaeWriter class
* start Wrapping MaeWriter
* mol -> mae block conversion
* copy general properties, except stereo
* improve docstrings
* Fix property filtering
* fail if no atoms; do not write empty bond blocks
* update atom indexes in bond block
* Fixes in MaeMolSupplier: check for duplicate bond definitions, stip property prefixes.
* add some tests
* adjust access, make dp_writer unique_ptr
* make Mol Writers non copyable
* extract bond translation to mapBond
* add write overload with heavy atom color arg
* forward declare mae::Writer, reverse CMakeFile changes
* revert the property filtering "fix"
* add some Python tests
* fix the windows build
* implement getText() static method
* mark the close() method as override
* locally undefine RDK_BUILD_MAEPARSER_SUPPORT
