fixes for GEX ETL
Change the return type to numeric inn tm_cz.i2b2_backout_trial to allow ETL to remove study.
cleanup numeric data for breast cancer study
split out plugins, search_auth and search from searchapp demo data - these need to be separately maintained and incl;ude the advanced workflow parameters in plugin_modules.sql
split out plugins, search_auth and search from searchapp demo data - these need to be separately maintained and incl;ude the advanced workflow parameters in plugin_modules.sql
numeric data value fix