feat: add cast pipes support

includes/abstract-integration.php

includes/class-rest-controller.php

includes/class-settings.php

includes/integrations/gf/class-integration.php

includes/integrations/wpcf7/class-integration.php

src/FormPipes/Table.jsx

src/RestApiSettings/FormHooks/FormHook.jsx

src/RestApiSettings/FormHooks/index.jsx

src/RestApiSettings/index.jsx

src/RpcApiSettings/FormHooks/FormHook.jsx

src/RpcApiSettings/FormHooks/index.jsx

src/RpcApiSettings/index.jsx

src/hooks/useFormFields.js

src/hooks/useHookNames.js

src/providers/Settings.jsx

wpct-erp-forms.php

wpct-http-bridge