Add contract type check to envelope validation

ValidateEnvelopeForSending now skips element checks if the envelope does not require a signature (i.e., contract type is not ReadAndSign), preventing unnecessary validation for such envelopes.

EnvelopeGenerator.Form/Controllers/EnvelopeEditorController.vb

@@ -50,6 +50,11 @@ Public Class EnvelopeEditorController
     Public Function ValidateEnvelopeForSending(pErrors As List(Of String)) As List(Of String)
         Dim oEnvelopeErrors = pErrors
 
+        Dim requiresSignature = (Envelope.ContractType = ContractType.ReadAndSign)
+        If requiresSignature = False Then
+            Return oEnvelopeErrors
+        End If
+
         If ElementModel.ElementsExist(Envelope.Id) = False Then
             oEnvelopeErrors.Add(Resources.Envelope.Missing_Elements)
         End If

EnvelopeGenerator.sln

@@ -47,8 +47,8 @@ Global
 		{089D5634-FB6B-42D0-B912-7AA7457044E7}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{089D5634-FB6B-42D0-B912-7AA7457044E7}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{089D5634-FB6B-42D0-B912-7AA7457044E7}.Release|Any CPU.Build.0 = Release|Any CPU
-		{6D56C01F-D6CB-4D8A-BD3D-4FD34326998C}.Debug|Any CPU.ActiveCfg = Release|Any CPU
-		{6D56C01F-D6CB-4D8A-BD3D-4FD34326998C}.Debug|Any CPU.Build.0 = Release|Any CPU
+		{6D56C01F-D6CB-4D8A-BD3D-4FD34326998C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6D56C01F-D6CB-4D8A-BD3D-4FD34326998C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{6D56C01F-D6CB-4D8A-BD3D-4FD34326998C}.Release|Any CPU.ActiveCfg = Debug|Any CPU
 		{6D56C01F-D6CB-4D8A-BD3D-4FD34326998C}.Release|Any CPU.Build.0 = Debug|Any CPU
 		{6EA0C51F-C2B1-4462-8198-3DE0B32B74F8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU