od_drug_types_trans: Add new drug variables based on both ICD-9-CM and ICD-10-CM.
In injuryepi/overdoser: Overdose data analysis

Use date to apply ICD-9_CM criteria to pre fiscal year 2016 and ICD-10-CM criteria to the rest.

1	od_drug_types_trans(data, diag_ecode_col_9, diag_ecode_col_10, date)

`data:`	the input dataset
`diag_ecode_col_9:`	indices(numeric) of diagnosis and E codes of interest
`diag_ecode_col_10:`	indices(numeric) of diagnosis and E codes of interest
`date:`	date of discharge

additional variables: any_drug, any_opioid, non_heroin_opioid , heroin

1 2	hosp_set %>% od_drug_types_trans(diag_ecode_col_9 = c(3, 6), diag_ecode_col_10 = c(3, 6), date = discharge_date) %>% select(-age, -diagnosis_2, -diagnosis_3, -ecode2, -year) %>% sample_n(10)