Fixes#46682.
Also fix unit test suite to separate generic FileAccess CSV testing
from using CSV as translation. And add more CSV translation tests.
Co-authored-by: Rémi Verschelde <rverschelde@gmail.com>
Adds a few more complex edge cases which are supported.
Also adds some documentation, simplifies the code a bit and forbids using
double quotes as a delimiter.
andybarcia
Rémi Verschelde
Andrii Doroshenko (Xrayez)