See <https://issues.oasis-open.org/browse/OFFICE-4150>, map SwFormatWrapTextAtFlyStart to <style:graphic-properties loext:wrap-text-at-frame-start="..."> on export, and the opposite on import. Change-Id: I43ee4c014fbcef8e883ff08ea061cfd395399a98 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/160010 Reviewed-by: Miklos Vajna <vmiklos@collabora.com> Tested-by: Jenkins