Add an option to the "Export to delimited text file" transformation to configure the quote and quote escape chars

Not all tools support the RFC4180 convention. It would be great if we could configure the chars to quote the fields and more important the char to escape the quote char within the value. At the moment this is both fixed to double quote char.

Use case: some tools, that import Easymorph created csv files are not able to use the same char for quoting and escaping.

Example: " as quote, / as escape char
“Example string /“Hello World/””