Add SimHitMergeAlg and update G2CDArborAlg

WIP: rename the K4DataSvc to k4DataSvc in job options.

WIP: rename the K4FWCore to k4FWCore.

Replaced ROOT Tree by NtupleSvc in GaudiPandora

Update GaudiPandora to support read Geo info and get decoder from DD4HEP

Update DCHDigi for using correct wire position from DDSegmentation::GridDriftChamber

The position of the wire is taken as the center of the cell.

Add function cellposition()

Fixed the phiFromXY() function to subtract a pai

import FullLDCTracking based on Mingrui's code

update ClupatraAlg and fix its runtime error

Add TPCDigiAlg in SimpleDigi and add classes in DataHepler

fix runtime error

Using CONFIG option in find_package for the package CLHEP