[Feature]: Support CSV type of files for resources.

[Sergey Loguntsov]

I didn't find CSV file support here: https://github.com/machinezone/mzbench/blob/master/doc/scenarios/spec.md#include_resource

So this ticket determines my wish about this.

The difference between TSV and CSV is CSV can contains escaped strings. So they should be removed
and CSV can support different separators
As example of escape sequence:
\ is
\n is new line character
\r is return caret character