fdo#32703 make CSV import ignore leading spaces before quoted field content
fdo#32703 make CSV import ignore leading spaces before quoted field content

Make CSV import ignore leading spaces if the field content without them is
quoted. Cope with broken generators that put leading blanks before a quoted
field, like "field1", "field2", "..." ignoring CSV specification
http://tools.ietf.org/html/rfc4180

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core