VUE-solutions

Solve various vue (Visual Understanding Environment) problems see issue #42 and #43.

1. Linux: Build a version of VUE that can be placed in /usr/bin and has an associated .desktop file so that it registers with desktop launchers and and can be used for file associations so that .vue and .vpk files can be double clicked to open them in VUE. See ./Linux/README-Linux.md

2. MacOS Catalina: Workaround to use VUE in Catalina. See ./Mac Catalina/README-Mac.md

3. Windows: Portable, self contained .exe file. See ./windows portable/README-Win.md