add tests for new sbv.
add more tests.
reforctoring.
add some tests.
add codes for LOUDSPPBvTree.
add tests for new sbv.
add tests for new sbv.
add new measurement.
add tests for longs rank1only sbv.
speed optimization.
add constructor.
Merge branch 'master' of https://github.com/takawitter/trie4j.git