completed bcr classical core calculator class
completed bcr classical core calculator class


Former-commit-id: 8baa13898b9f998740ede1673783794df010c02e [formerly 8baa13898b9f998740ede1673783794df010c02e [formerly 0c3ec23fa6fa8c69f8caa23b9f2595b333d924d1]]
Former-commit-id: dfd23bd031720c1b5490ed050ec308d92c932334
Former-commit-id: b640927d5a17b9da9554097f3611fa9983272e01
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine