remove p_en and add recording of age-structured vaccination

CovidAlertVaccinationModel/Manifest.toml

CovidAlertVaccinationModel/Project.toml

...ationModel/abm_parameter_fits/outbreak_inf_parameters.dat

...odel/abm_parameter_fits/post_inf_behaviour_parameters.dat

...Model/abm_parameter_fits/pre_inf_behaviour_parameters.dat

CovidAlertVaccinationModel/abm_timeseries.jl

CovidAlertVaccinationModel/src/ABM/model_setup.jl

CovidAlertVaccinationModel/src/ABM/output.jl

CovidAlertVaccinationModel/src/ABM/parameter_optimization.jl

CovidAlertVaccinationModel/src/ABM/solve.jl

post_inf_fitting.pdf

post_inf_fitting_posteriors.pdf

seasonal.pdf

seasonal_posterior.pdf

timeseries.pdf