merge IntervalsModel into CovidAlertVaccinationModel, dependecies are too tight to manage as too packages easily

Update IntervalsModel/network-data/POLYMOD/Duration-priors.py, IntervalsModel/network-data/POLYMOD/Frequency-distribution.py, IntervalsModel/network-data/POLYMOD/mixing_loc-freq.csv files
Deleted IntervalsModel/network-data/POLYMOD/AALfreqdist.csv

Update IntervalsModel/network-data/POLYMOD/Duration-priors.py, IntervalsModel/network-data/POLYMOD/Frequency-distribution.py, IntervalsModel/network-data/POLYMOD/AALPoisPriors.csv, IntervalsModel/network-data/POLYMOD/AALfreqdist.csv files

Durations-priors updated a few ways.

First, corrected problems with symmetrizing the data. Changes priors 

Second, added frequency distributions with 3 bins

added new parameter to resample distributions for many repetitions in error function, symmetric priors simulation done

Update IntervalsModel/network-data/Timeuse/Rest/RDataM.csv, IntervalsModel/network-data/Timeuse/Rest/RDataO.csv, IntervalsModel/network-data/Timeuse/Rest/RDataY.csv, IntervalsModel/network-data/Timeuse/Rest/RData.py, IntervalsModel/network-data/Timeuse/WS/WSData.py, IntervalsModel/network-data/Timeuse/WS/WorkschoolDataM.csv, IntervalsModel/network-data/Timeuse/WS/WorkschoolDataO.csv, IntervalsModel/network-data/Timeuse/WS/WorkschoolDataY.csv, IntervalsModel/network-data/Timeuse/HH/HHYMO.csv files

Update IntervalsModel/network-data/Timeuse/WS/WorkschoolDataM.csv, IntervalsModel/network-data/Timeuse/WS/WorkschoolDataO.csv, IntervalsModel/network-data/Timeuse/WS/WorkschoolDataY.csv files

removed LTC/HCW stuff, contact generation needs fixing, use bytearrays instead of bitarrays for weights