added go.mod

renamed descriptor to dsn, drivername to driver

Merge remote-tracking branch 'origin/master'

added BuildQueryWithInColumns

patched boolean value distrophy

added dialect session support

updated scanner interface with ColumnTypes()

Merge branch 'master' of https://github.com/viant/dsc

added default implementation for IsKeyCheckSessionLevel

added vertica driver dialect, added IsKeyCheckSwitchSessionLevel