Add finance 1 flow

hypha/apply/api/v1/projects/serializers.py

hypha/apply/api/v1/projects/views.py

hypha/apply/api/v1/urls.py

hypha/apply/dashboard/views.py

...y/funds/templates/funds/includes/delegated_form_base.html

hypha/apply/projects/forms/payment.py

...ply/projects/migrations/0046_add_required_checks_field.py

hypha/apply/projects/models/payment.py

...emplates/application_projects/includes/funding_block.html

.../application_projects/includes/required_checks_block.html

.../templates/application_projects/invoice_admin_detail.html

...ojects/templates/application_projects/invoice_detail.html

hypha/apply/projects/templatetags/invoice_tools.py

hypha/apply/projects/templatetags/payment_request_tools.py

hypha/apply/projects/tests/test_templatetags.py

hypha/apply/users/models.py

...tatic_src/src/javascript/apply/invoice-required-checks.js