OpenG Package Manager improvement

[Rolf K. <rol...@ci...>]

When trying to dig into the package creation through the package manager
I ran into an error creating the final package. It turned out to be the
"packaged" directory which didn't exist on my system and which therefore
caused an error when the .ogp package could't be created.

I was considering adding the function to make sure that the directory
exists
to the ZLIB Open ZIP File.vi function, but think that this would be a
little
to much for a library function. Instead I identified the OGPM Create
Package
From Pkg File.vi function which might benefit from the the addition of
the
Create Dir if Non-Existent.vi function.

Included is a copy of that function to add to the next release of the
OGPM
Package if this is deemed a useful improvement. 

Rolf Kalbermatter