Resolved causes of orphaned rows in OBJECTS_SUMMARY_GLOBAL_BY_TYPE:
  
- Delete PFS table share of 'old' table during RENAME TABLE
- Delete newly created PFS table share following a failed CREATE_TABLE
- Added 'temporary' paramter to drop_table_share() API
- Enhance detection of temporary table in ha_create_table()
- Do not create PFS table shares or track events for temporary tables, internal or otherwise