Fix/tally spoiled (#466)

* Removed check for spoiled ballot to be in tally
Added scrolling on the challeneged ballot display
Updated version number to allow for WASM

* Converting spoiled to challenged on import

Author: SteveMaier-IRT

bindings/netstandard/ElectionGuard/ElectionGuard.Decryption/Decryption/CiphertextDecryptionTally.cs

@@ -114,11 +114,6 @@ public void AddBallot(CiphertextBallot ballot)
     // add a spoiled ballot which will not be decrypted
     public void AddSpoiledBallot(CiphertextBallot ballot)
     {
-        if (_tally.HasBallot(ballot.ObjectId))
-        {
-            throw new ArgumentException($"Tally {TallyId} already contains ballot {ballot.ObjectId}");
-        }
-
         if (!ballot.IsSpoiled)
         {
             throw new ArgumentException($"Tally {TallyId} Cannot add unspoiled ballot {ballot.ObjectId} {ballot.State.ToString()}");