1. update workflow files
2. Add 3-series SLN and csproj files
- Remove from project when using the template if not needed
3. Update 4-series SLN and csproj files
4. Moved SLN's to root of project
5. Rename *.cs files to identify naming convention of 'MakeModel'
6. Upate packages.config to reference latest Essentials v1 release
