Move the logic to create sql projections out of PickerSQLConstants

Refactor to move the logic to a different class.

Also, add the ability to prepend table name to the column names in
sql statements to prevent ambiguous column names error in sql
join statements.

Bug: 374926332
Test: atest PickerDataLayerV2Test
Change-Id: I102f014066ded45a16d3fac2ea80fce3bc9d0ece
Flag: EXEMPT refactor