Add new settings tab for participation processes

- Rename setting keys
- New tab por participation processes
- Hide these settings from features tab

spec/features/users_spec.rb

@@ -409,11 +409,11 @@ feature "Users" do
       visit user_path(user)
       expect(page).to have_content("7 Comments")
 
-      Setting["feature.debates"] = nil
+      Setting["process.debates"] = nil
       visit user_path(user)
       expect(page).to have_content("6 Comments")
 
-      Setting["feature.budgets"] = nil
+      Setting["process.budgets"] = nil
       visit user_path(user)
       expect(page).to have_content("4 Comments")
     end