Fix Publishing `bool`, `int` and `float` data types

[sacOO7]

• According to the UnsupportedTypes defined in MessageHandler.cs, the following types are currently not supported as values for the data argument in publish:

private static readonly Type[] UnsupportedTypes =
{
    typeof(short), typeof(int), typeof(double), typeof(float), typeof(decimal), typeof(DateTime), typeof(DateTimeOffset), typeof(byte), typeof(bool),
    typeof(long), typeof(uint), typeof(ulong), typeof(ushort), typeof(sbyte),
};

• As a result, the following calls will fail:

  1. channel.PublishAsync("test", true);
  2. channel.PublishAsync("test", 10);
  3. channel.PublishAsync("test", 10.4);

• These types are accepted in ably-js and other client libraries, so we should explore how to align .NET behavior accordingly in the near future.

[sacOO7]

Accordingly update MessageDecodingAcceptanceTests.cs and MessageEncodersAcceptanceTests.cs