compile with compact profiles [LUCENE-6069] #7131

If we clean up the 'alignment' calculator in RamUsageEstimator, we can compile core with compact1, and the rest of lucene (except tests) with compact2.

Migrated from LUCENE-6069 by Robert Muir (@rmuir), resolved Feb 12 2015
Attachments: LUCENE-6069.patch (versions: 5)
Linked issues:

• Remove RAMUsageEstimator Unsafe calls [LUCENE-6239] #7301