Clarifications and updates to C.3 SSW

A number of small changes have been made to C.3 Solar System Workings (SSW): Section 2.1 Exclusions has been updated to include reference to C.24 Apollo Next Generation Sample Analysis Program and clarify the edge between SSW and C.7 Planetary Data Archiving, Restoration, and Tools. In addition, the points of contact in Section 5 have been updated. Due dates remain unchanged: NOIs are requested by November 15, 2018 and proposals are due January 31, 2019. Questions and comments regarding these changes and SSW in general may be directed to hq-ssw@mail.nasa.gov.