Project manager update
Simplify project manager logic and fix issues, mostly to work with pending project manager plugin (which will be in a separate repository).
- Adds smtk::project::Manager to paraview/smtk wrapper classes
- Adds interim logic for project-export
- As a bonus, also updates smtk::attribute::Read operator to set the resource location (which fixes label in resource-panel display)
Backport: release
Edited by John Tourtellott