Expose "Moveable Column Seperators" property on multicolumn listboxes.

[_carl]

This one's pretty simple...  Multicolumn listboxes have a "Moveable Column Seperators" property that's available from the menu at edit time:

But this property isn't exposed through property nodes.  I'm currently in a situation where I really wish it was!

I'm not the only one who's encountered this:

https://forums.ni.com/t5/LabVIEW/Moveable-Column-Seperators-Property/td-p/2217334