fdo#71722 add Excel 2010 functions

EXPON.DIST, HYPGEOM.DIST, POISSON.DIST, WEIBULL.DIST

Change-Id: Ib9f648739ec0af90cdf2f576c7f548a6acb7b4a6
Reviewed-on: https://gerrit.libreoffice.org/6748
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>