* feat: Add unit test for two level customization
issues: #49
* feat: Add class for statistic set and related unit test
issue: #49
* Initial commit of cell_update_record with unit tests.
* feat: Initial commit of cell_update_record with unit tests.
issue: #49
* Refactor code.
* Refactor code.
issue: #49
* Integrate logic with customization
issue: #49
* fix: adjust comments
issue: #49
* feat: add flag of incremental, will load previous metrix table if set to true
issues: #49
* fix: compilation in docker.
issues: #49
* fix: fix crash issue and add protection code
issues: #49
* Fix: Update code based on pull request's comments
issue: #49
* fix: Remove util/concurrent_set, directly define set in updater.hpp
issue: #49
* fix: Passing shared_ptr by reference.
For the MLD algorithm we can partition the NodeID range into boundary
and non-boundary nodes. Since there are only we boundary nodes we can
use the ArrayStorage for those yielding much faster query times.
Rename module partition to partitioner.
This cultivates naming used in existing modules like extractor,
customizer, etc. - noun vs verb (word partition is both though).