Update Self-Service Job History Page

• updated self_service_history.erb to add Visibility column with icons to represent whether the job is public or private.
• updated GET /:user/jobs/? in self_service.rb to accept parameter is_private[] for adding new Visibility filter and pass is_private_filter and disable_private_filter (so that Visibility filter is not available when user is accessing job history of other than itself) as locals to template self_service_history.erb.
• updated self_service_history.erb with checkboxes for filter Visibility and updated logic with is_private_filter and disable_private_filter values.
• updated tests for GET /:user/jobs/? in self_service_spec.rb`.