Major performance improvement release. Thanks to Benjamin Schaaf this release uses threading to process frames for the preview and makes more of the app async, improving the responsiveness a lot. This release also adds resolution switching when taking a picture so the preview can run on a lower resolution. * Don't wait for camera to turn on before showing window< * Use seperate thread for image processing, keeping UI responsive * Apply color calibration in the preview * Run camera at lower resolution while previewing * Added seperate tools for camera testing from the command line