renamed GroundTruthType to AnnotationType in PlayerApp
- fixed issues with the parameters of TrackingApp
- set the hit threshold to 1/3 according to the BoBoT dataset in TrackingApp and BenchmarkApp
- added a hint to this threshold to the TrackingApp's console output
- renamed TrackingBenchmark to Benchmark
- renamed AdaptiveTracking TrackingApp
- removed most of the open TODOs