Position the output window and debug console in a horizontal panel

[stevencl]

To improve readability of text inside the output window and debug console and to avoid the problem of these windows taking the position of an open editor we should display the output and debug console in a separate horizontal panel. For example:

This panel should have the following characteristics:

• Should be as wide as the main editor area
• Does not participate in quick open or recent files list
• Does not contain tabs to switch between different providers such as output and debug console (hence does not support viewing output and debug console simultaneously)
• Can be opened manually from main menu commands or automatically based on specific actions (such as pressing F5)
• Is visually distinct from an editor
• Can be docked to the side
• Can be resized to a maximum height of 66% of the available height and resized to a minimum height of 20% of available height (these numbers can and will be tweaked as we experiment with this)

[bgashler1]

Adding myself as a participant

[bgashler1]

@bpasero Please see the comments on this issue #1876 (comment)
for current design proposals. Let us know your thoughts.