Feature: provide option for stripping double quotes around (CSV) field values

[mklement0]

First things first: Great tool, thank you for providing it for free.

Sometimes, CSV data is produced in which fields are all categorically double-quoted.
For instance, PowerShell's Export-Csv and ConvertTo-Csv cmdlets produce such data; e.g.:

"Col1","Col2","Col3"
"Col1Val1","Col2Val1","Col3Val1"
"Col1Val2","Col2Val2","Col3Val2"
"Col1Val3","Col2Val3","Col3Val3"
"Col1Val4","Col2Val4","Col3Val4"
"Col1Val5","Col2Val5","Col3,Val5"

It would be great if there were an option to strip these double quotes, so they don't show up in the output table.

In that context, quoting-aware parsing would be helpful, as any embedded , chars. (in double-quoted fields) aren't currently recognized as such (see last column of last row) which relates to #47.

Thus, instead of:

+------------+------------+------------+-------+
|   "Col1"   |   "Col2"   |   "Col3"   |       |
+------------+------------+------------+-------+
| "Col1Val1" | "Col2Val1" | "Col3Val1" |       |
| "Col1Val2" | "Col2Val2" | "Col3Val2" |       |
| "Col1Val3" | "Col2Val3" | "Col3Val3" |       |
| "Col1Val4" | "Col2Val4" | "Col3Val4" |       |
| "Col1Val5" | "Col2Val5" | "Col3      | Val5" |
+------------+------------+------------+-------+

It would be great to have:

+----------+----------+-----------+
|   Col1   |   Col2   |   Col3    |
+----------+----------+-----------+
| Col1Val1 | Col2Val1 | Col3Val1  |
| Col1Val2 | Col2Val2 | Col3Val2  |
| Col1Val3 | Col2Val3 | Col3Val3  |
| Col1Val4 | Col2Val4 | Col3Val4  |
| Col1Val5 | Col2Val5 | Col3,Val5 |
+----------+----------+-----------+