For Sign Request creation API, add input fields.

In GET sign template the response already has inputs with positions https://developer.box.com/reference/resources/sign-template/#response-example

We generate our own PDF documents programmatically and can extract position of any element, especially the signature input fields. For us it would be very convenient to be able to provide information about signature position, coordinate (exact and/or relative), page size, metadata such as id and/or label, type, etc.

This way the signature creation process can be automated completely.