calcs/risk/general:
calcs/risk/general:

Added a fake risk calculator to use for the time being, just so
I can stand up the risk engine bits.


Former-commit-id: 5e914e690f187fcb244240ead3d98c040b01b203 [formerly 5e914e690f187fcb244240ead3d98c040b01b203 [formerly 6ef1e35fd40a7c92e6fd15cfaa8ea7fd10a055e9]]
Former-commit-id: c05aa51257920cdd32427ab68413e70f345bfd18
Former-commit-id: 7404a267f7636d3e5fd5a07b1a82a4c8b3a13576
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine