Extend packagelist parsing to read "sources.csv" files.
https://developer.symbian.org/oss/API_REF/SHAI/
https://developer.symbian.org/oss/FCL/examples/app/NPR/
https://developer.symbian.org/sfl/API_REF/Public_API/epoc32/
https://developer.symbian.org/oss/FCL/interim/auxiliary_tools/AgileBrowser
https://developer.symbian.org/oss/FCL/interim/auxiliary_tools/route_generator
https://developer.symbian.org/oss/FCL/interim/auxiliary_tools/simulation_PSY
https://developer.symbian.org/sfl/FCL/interim/desktopsw