RequireTimeCondition does not handle complex joins

[abhishek-chouhan]

Enabling druid.sql.planner.requireTimeCondition results in valid join queries being blocked.
Example -

SELECT distinct T1.dim1, T2.dim2 FROM
(SELECT dim1 from druid.foo WHERE dim1 <> '' AND __time >= '2000-01-01') AS T1,
(SELECT dim2 from druid.foo WHERE dim1 <> '' AND __time >= '2000-02-01') AS T2
WHERE T1.dim1=T2.dim2

Both the nested queries have a time filter for the above inner join, however the requireTimeCondition logic is looking for a time filter on the top level query.