chart2: Batch changes to properties when creating 3D objects

MultiPropertySet doesn't broadcast ItemSets as often as setting
each property separately. This can help when we create a lot of
3D objects.

Change-Id: I4eb842a5d8c43963bdceee84468593f5f6b47336
Reviewed-on: https://gerrit.libreoffice.org/46445Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>