Fix prototype/sqlparser project. Created exec/ref:test jar and fixed classifier in sqlparser/pom.xml

Signed-off-by: Jacques Nadeau <jacques@apache.org>
Cleanup pom files.  Partial application of DRILL-36 patches.

Should fix DRILL-36, DRILL-43
Tests that project and filter based on nested fields (upgrades to Optiq 0.2 for map and late-binding functionality).