Matthias Kleiner

SACs: Adding helper class for accessing SACs from CCDB

6

- forward declare some classes - remove includes/unneded code

TPC dE/dx: using nD-piecewise polynomials instead of polynomials

2

The following new calibration object is needed to apply this correction: [Tracktopology_piecewise_scaled.root.zip](https://github.com/AliceO2Group/AliceO2/files/9338706/Tracktopology_piecewise_scaled.root.zip)

TPC: Adding option to make timegain calib with gausian fits

1

- setting tighter default momentum range for filtering MIPs to reject kaons and electrons - adding option to write CalibdEdx to local file by converting the boost histogram to a...