Add live video stream

[dotdoom]

The settings are transferred using headers:

X-Capture-Server-WIDTH
X-Capture-Server-HEIGHT
X-Capture-Server-FPS
X-Capture-Server-PASSWORD

List of original modes:

WIDTH×HEIGHT	FPS range	Comments
2592×1944	1-15	Full FOV, not yet supported
1920×1080	1-30	Sensor cropped
1296×972	1-42	4:3 Full FOV
1296×730	1-49	16:9 Full FOV (width only)
640×480	43-60
640×480	61-90

Let the user choose the resolution from drop-down, then choose FPS from allowed range (using drop-down or slider).
Once a resolution is selected, show a comment (e.g. "sensor cropped" or "full FOV").