calcs/hazard/general:
calcs/hazard/general:

Added `point_source_block_size` helper method to the base hazard calc class.


Former-commit-id: a8c99e8b418043a4ed5fc99d94954620a341e5f6
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine