Add signature_request/remove and fix template/add_user (#85)
Add signature_request/remove and fix template/add_user (#85)

* Add signature_request/remove and fix template/add_user

* Adding more clear summary for signature_request/remove

Co-authored-by: Durgesh <6aafd1b807ff411b3a2dd3bcba42fb954d2a1c33@durgeshpatel-mbp.corp.dropbox.com>
HelloFax/hellosign-dotnet-sdk