Add date and number(including decimal) as field type

Hi, Thank you very much for developing the plugin, to add custom fields to Variations! It is a great functionality. Just one thing here. Currently, it is possible to create fields with the types "text", "textarea", "select", "checkboxes" and "radio buttons". In addition to that, it would be great, to have the field types "date" and "number". For numbers, it would also be great if it would be possible to add decimals. Or is it actually possible to add these field types with some custom development/ use of filters? Thank you for taking your time on this.