Remove L from integer literals in module basegfx all 0L, 1L, and 2L

Change-Id: Ia8a0d660033651f6d0a35392b74b67358b639fb3
Reviewed-on: https://gerrit.libreoffice.org/27717Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>