Layout improvements

[andrewdavidmackenzie]

Here are a few random ideas I have for improving the way the UI is laid out.

• Have the window it "shrink to fit" the content, and avoid a fixed size. It would change size depending on the layout selected, and get narrower and higher on BCM layout, and avoid big black spaces on all layouts
• Change the BCM layout to be "right side" so that we have room to expand to the right for input and output widgets....such as a waveform view...

[andrewdavidmackenzie]

We're trying this, but struggling to get Iced to be "responsive" on the overall app window size based on contents....

[andrewdavidmackenzie]

You can see how this turned out in v0.2.0 release.