[Feature Request] Add support for LinqPad's `DumpContainer`

[CodesInChaos]

Linqpad supports DumpContainer, which allows updating dumped data in the output window. Adding support for this would be convient for things like progress indicators.

For example:

var dump = new DumpContainer().Dump();
for(var i = 0; i <= 100; i++)
{
    dump.Value = i;
    Thread.Sleep(100);
}

Would output a single number which slowly goes from 0 to 100.

[tareqimbasher]

Yeah, that is useful. I'll see what I can do.