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TransactionResponse constructor fails for text memo

See original GitHub issue

Problem In the class stellar_dotnet_sdk.responses.TransactionResponse processing of MemoText currently is not possible. For example, this text memo cad98atrnpbwtn9qiozjpd5m6o is used as a deposit address for a user.

This code should work with text memo: https://github.com/elucidsoft/dotnet-stellar-sdk/blob/master/stellar-dotnet-sdk/responses/TransactionResponse.cs#L78

Solution Update getter and setter of MemoValue property

public Memo Memo
        {
            get
            {
                switch (MemoType)
                {
                    case "none":
                        return Memo.None();
                    case "id":
                        return Memo.Id(ulong.Parse(MemoValue));
                    case "hash":
                        return Memo.Hash(Convert.FromBase64String(MemoValue));
                    case "return":
                        return Memo.ReturnHash(Convert.FromBase64String(MemoValue));
                   // Code below should be added
                    case "text":
                        return Memo.Text(MemoValue);
                    default:
                        throw new ArgumentException(nameof(MemoType));
                }
            }
            private set
            {
                switch (value)
                {
                    case MemoNone _:
                        MemoType = "none";
                        MemoValue = null;
                        return;
                    case MemoId id:
                        MemoType = "id";
                        MemoValue = id.IdValue.ToString();
                        return;
                    case MemoHash h:
                        MemoType = "hash";
                        MemoValue = Convert.ToBase64String(h.MemoBytes);
                        return;
                    case MemoReturnHash r:
                        MemoType = "return";
                        MemoValue = Convert.ToBase64String(r.MemoBytes);
                        return;
                   // Code below should be added
                   case MemoText r:
                        MemoType = "text";
                        MemoValue = value;
                        return;
                    default:
                        throw new ArgumentException(nameof(value));
                }
            }
        }