make increase/decrease paragraph spacing uno commands globally accessible

Change-Id: I08e6c56598a92afcc21455704e01bda2212d3998
Introduce ParaspaceIncrease/Decrease commands in Writer and Calc

Change-Id: Ia8933697fd7bd827bb69c0976f13112eb2131888
Revert "fdo#81475 Writer doesn't have ParaspaceIncrease/Decrease commands"

Now that we have these commands in place.
This reverts commit 503379fa0b06b66ab6f2bbedc73cdcb056545330.