show list reminders in block and delete reminder feature

hypha/apply/activity/messaging.py

hypha/apply/activity/options.py

hypha/apply/funds/models/reminders.py

...s/templates/funds/applicationsubmission_admin_detail.html

...y/funds/templates/funds/applicationsubmission_detail.html

...apply/funds/templates/funds/includes/reminders_block.html

.../apply/funds/templates/funds/reminder_confirm_delete.html

hypha/apply/funds/urls.py

hypha/apply/funds/views.py