Alter add_project_goals to work with richer phaselist files

This way we can specify the required data in a file and just import it,
instead of having to type each bit of in different forms.

This helps to minimize the current lack of working method to edit goals.
Recover UI: Redirect to TP root if current resource isn't in chosen goal

This avoids showing the current resource when we change the goal in the
dropdown but the current resource doesn't belong to the chosen goal.
Followup: Remove goals statistics table

We now have enough with the next most important goal translate action
and the prioritized goals dropdown.