With this commit we are making numbers of columns
dynamic, but the number of maximum supported
columns will be the same (1024).
Such approach will allow us to check issues
(eg. performance, LO format etc.), and improve it.

Increasing number of maximum columns, will be done
in separate commit.

Change-Id: Ibac4101e9ffc05e3548eca1c198f6319ac7ff9aa
Reviewed-on: https://gerrit.libreoffice.org/44802
Tested-by: Jenkins
Reviewed-by: Bartosz Kosiorek <gang65@poczta.onet.pl>