correctly label actual&predictions
fix misspelling
allow to write to file
refactor to use common print function
new: create chart in separate main program
source all needed files
Add charts for model-linear-test

ALso fix bug inn sfpLinear_01
new: share print code between analysis and chart main programs
allow for multiple charts to be produced
add AVM variants
new: draft to compare AVM w and wo assessment
add set ChopraNoGeocoding (omit latitude, longitude)
also read APNs
add avmVariants
add avm variants
add avm variants
add root median square error metric
change API
new method to generate prices and assessments
complete rewrite (all.results changed)