HPCC-9386 ecl cli should handle ecl filename with spaces

eclcc is being called without quotes around the ecl filename parameter.
Filename will now always have quotes.

Also remove unused duplicate copy of the ConvertEclParameterToArchive
class.

Signed-off-by: Anthony Fishbeck <Anthony.Fishbeck@lexisnexis.com>
Merge pull request #4663 from afishbeck/eclCmdParameterQuotes9386

HPCC-9386 ecl cli should handle ecl filename with spaces

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>