Added a new compatibility option to the Tools -> Load / Save ->
Microsoft.
When this option is set on the UI or or set in the configuration files
LO generates lock files for MSO supported file formats, similar to
the lock files MSO generates itself.

Change-Id: I2f882723841162add01be9d3f7285a5162a60331
Reviewed-on: https://gerrit.libreoffice.org/69678
Tested-by: Jenkins
Reviewed-by: Tamás Zolnai <tamas.zolnai@collabora.com>