CSV Import

some features:

• default python CSV parsing
• create a new "data layer" (record type) on import, or, match up the csv file to pre-existing "data layer"
• first row of CSV would be used to match up with layer field names
• if creating new, those would be field names; if matching up, tool will give error if fields don't match up, prompting user to edit CSV, or select different extant "data layer"
• rows of CSV file would create new data points

• original CSV file should be saved ... create "CSV Import Log" record, saving username, date, time, original CSV and possibly notes about the import