Package Manager workspace

[Bill Daly]

Starting with version 0-2-3 (6/8/2019) of my APL Library you can 
populate the library's workspaces in Package Manager.

I've reloaded Package Manager from 
https://github.com/blakemcbride/APL-Pkg.git and much of APL Library will 
not ]pkg load.  The errors appear to be caused by creating variables 
(with the appropriate prefix).