admin_match Matches the user input admin unit and country with data
     
    
    Usage
    admin_match(admin_unit = NULL, country = NULL, admin_units_seasonal)
 
    
    Arguments
- admin_unit
- Character for admin region. Some fuzzy logic will be used to
match. If not provided then no seasonality is introduced. Default = NULL 
- country
- Character for country within which admin unit is in.
Default = NULL 
- admin_units_seasonal
- Dataframe of seasonality data for country and admin unit