Add ability to Delimited Text to dynamically infer column names from a header row

[rbeckman-nextgen]

Currently you can hard-code column names, but that always assumes that those columns will appear in order. For example, say you had the following files:

{panel:title=File 1}
||MRN||Surname||
|1234|Smith|
|4152|Martins|
{panel}

{panel:title=File 2}
||Surname||MRN||
|Smith|1234|
|Martins|4152|
{panel}

If you chose "MRN,Surname" as your column names, then File 1 would process correctly but File 2 would not. If instead the Delimited Text parser could infer the column name from the first row, then both files would process correctly.

Imported Issue. Original Details:
Jira Issue Key: MIRTH-2798
Reporter: narupley
Created: 2013-07-24T06:52:38.000-0700