Cells: Iteration 3: Assign gitlab schemas to all tables touched on creating a project within a group

We need this list as part of Iteration 3:

This is similar to what we did in iteration 2: #404762 (closed)

Approach:

• Find all tables being touched when a user creates a project in a group
• For all the tables in the list, create a 2nd list of tables currently belonging to gitlab_main schema.
• Move all the tables in the 2nd list, to gitlab_main_cell or gitlab_main_clusterwide schema as necessary.

Results (from #428600 (comment 1610331742)): Total count: 45

With !134652 (merged)

• project_ci_cd_settings
• project_compliance_standards_adherence
• project_group_links
• project_import_data
• project_pages_metadata
• project_security_settings
• project_settings
• project_statistics
• project_wiki_repositories
• projects_sync_events
• push_rules

With !134969 (merged)

• approval_project_rules
• container_expiration_policies
• group_merge_request_approval_settings
• incident_management_timeline_event_tags
• ip_restrictions
• namespace_aggregation_schedules
• namespaces_sync_events
• onboarding_progresses
• protected_branches
• remote_mirrors

With !135124 (merged)

• path_locks
• project_repositories
• repository_languages
• security_orchestration_policy_configurations
• web_hook_logs

With !135241 (merged)

• events
• internal_ids
• namespace_commit_emails
• topics

With !136057 (merged)

• fork_network_members
• fork_networks
• labels
• lfs_file_locks

With !136193 (merged)

• audit_events_external_audit_event_destinations
• audit_events_google_cloud_logging_configurations
• protected_branch_merge_access_levels
• protected_branch_push_access_levels

TODO for later:

Audit event tables: Created issue: #431327

• audit_events_instance_external_audit_event_destinations
• audit_events_instance_google_cloud_logging_configurations
• audit_events

Other tables

• shards - Created issue: #431329
• programming_languages - Created issue: #431330
• clusters - Created issue: #431332
• user_interacted_projects - table is going to be removed in #360823 (closed), scheduled for 16.8