HIVE-4143

Summary: Added PTFPPD to control the behavior how filters are pushed around PTF Operator.

Test Plan: Added new tests.

Reviewers: hbutani

Differential Revision: https://reviews.facebook.net/D9261

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/ptf-windowing@1455386 13f79535-47bb-0310-9956-ffa450edef68