Sync script updates

[Bankso]

Updating sync_publications.py to allow CSVs to be synced to CCKP database

• support use of staging CSVs, instead of tables
• extract 'theme', 'grantName', and 'consortium' information from Grants - Merged table and add to each publication listed
• default manifest set as "syn53478776", the current synId for the PublicationView staging database CSV
• remove dataset alias column conversion to string, since reading from CSV appears to produce strings