Add CDCWonder_NNDSS_Infectious_Weekly scripts and schema mappings#1973

abhishekjaisw merged 12 commits into

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abhishekjaisw:statvar_imports/cdc/CDCWonder_NNDSS_InfectiousWeeklyabhishekjaisw/data:statvar_imports/cdc/CDCWonder_NNDSS_InfectiousWeeklyCopy head branch name to clipboard