HBASE-8774 Add BatchSize and Filter to Thrift2 (Hamed Madani)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1498900 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8767 Backport hbase-8001 and hbase-8012, avoid lazy seek (original patches by Raymond Liu)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1498953 13f79535-47bb-0310-9956-ffa450edef68