Cleanup of acs_object_context_index' and friends in creation scriptsThis change completes the commit [1] from 2019, where the cleanup was performedacs_object_context_index and its maintenance functions just as an update script.This change addresses this also in the creation scripts and in packages, stilldepending on the old functions.[1] https://fisheye.openacs.org/changelog/OpenACS?cs=oacs-5-10%3Ahectorr%3A20190708160122
initial import of acs kernel data-model ported to postgresql - implementation of tree queries completed for acs_object_types. Still need to finish tree queries for acs_privilege_hierarchy and rel_constraints tables.