Model updates with virology parameters

Modifications to be inline with the most recent paper:

• Introducing a diameter as a vectorised parameter of Expiration. The BLO model is put back as part of the Monte-Carlo model, and new expiration_distributions are created in monte_carlo/data.py.

• The exposure of ExposureModel is computed with a mean, when a diameter distribution is present - it correspond to the Monte-Carlo integration of the diameter-dependent model.

• In the calculator, the model_generator now uses the Monte-Carlo BLO model and proper weighting of distributions when needed.

• The BLO particle concentration emission values,cn, were updated on the B - 0.06 and L - 0.2 modes.

• Number of samples increased to 250000 in model_generator and Monte-Carlo tests (because of the need to accurately sample the diameters).

• The gravitational settling is now fully diameter dependent, as well as the f_dep (fraction of virus deposited on the respiratory tract). An evaporation factor (default value = 0.3) was also introduced in ConcentrationModel, reducing the size of the aerosols before applying the formulas.

• Inhaled dose formula considers now the f_inf (fraction of infectious virus) with the host_immunity added to the InfectedPopulation, and the viable-to-RNA distribution (uniform [0.01 - 0.6]) added to the Virus class.

• halflife value for low humidity changed to 6.43.

• The infectious_dose_distribution is now a uniform distribution [10 - 100].

• The formula for the probability of infection was updated according to the new values for the reported increase of transmissibility of a VoC - transmissibility_factor, as well as the respectivehost_immunity values. Added the Beta and Omicron VoCs.

• Talking references replaced by Speaking.

• Inclusion of the Toronto temperatures.

Pipeline was fixed according to these changes.