TrkDynamicNoiseAdjustor: Add ATLAS_CHECK_THREAD_SAFETY
TrkDynamicNoiseAdjustor:
- Remove mutable by creating a state argument,
- add ATLAS_CHECK_THREAD_SAFETY,
- remove some bare ptr in favor of unique_ptr,
- use 'std' math functions,
- cleanup a bit commented code,
- aesthetic / indentation changes