SshCommand OutputStream has no way to directly set BlockLastReadBuffer

[hifi]

When reading the stdout of a process executed through SshCommand the output stream will throw an exception if you read beyond what's available in the buffer and it seems to be by design.

Although in my opinion this is the wrong default, there's no direct way to change the property at runtime as the exposed interface is the standard Stream.

Could the default be changed to more sensible blocking behavior or there be a public method/property that can be used to change it at runtime?

[hifi]

PR #144 has a big rewrite that fixes this as well by removing this option completely.