fixed threading bug in tapping on the huawei watch
- added faster bpm estimation by using multiple windows now - implemented a simple z score based outlier detection - some ugly heuristics to prefend to many -1 on the screen NOTE: this is a very unstable version of the code, very protoype
- circular progressbar - callbacks für BPM schätzung und metronom - Vibration Metronom - Input einer BPM Zahl