### What problem does this PR solve?

Rename page_num_list, top_list, position_list to page_num_int, top_int,
position_int

### Type of change

- [x] Refactoring

### What problem does this PR solve?

Close #3873

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

#3794

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

Integration with Infinity

- Replaced ELASTICSEARCH with dataStoreConn
- Renamed deleteByQuery with delete
- Renamed bulk to upsertBulk
- getHighlight, getAggregation
- Fix KGSearch.search
- Moved Dealer.sql_retrieval to es_conn.py


### Type of change

- [x] Refactoring