boxplot instead of barplot for zOR by region
boxplot instead of barplot for zOR by region

OR_allweeks_hhsreg.py
- added plots for average z-OR vs. region in addition
to average z-OR rank vs. region
- boxplot for average z-OR vs region across all seasons
- boxplot for average z-OR vs region across
different season types is not complete because x-axis
values need to be manually implemented
since there will be multiple boxplots per region

eclee25/flu-SDI-exploratory-age,eclee25/flu-SDI-exploratory-age