configure approval group by DFF and user can select the approver

Summary:

Currently for LA approve, users just click submit for approval in the actions of Lease Accounting Contract.

The finance team would like to allow users to select the approver directly by themselves

add DFF in the lease transactions, and maintain the approval list in the DFF value set, and user can select one of the approvers for approval.

Content (please ensure you mask any confidential information):

Approval groups in DFF, and can be selected by user directly

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):