Add option for gtgun to generate charged particles according to costheta distribution

See merge request cepc/CEPCSW!170

Debug: assign correct Hcal hit energy in digitization

See merge request cepc/CEPCSW!171

REC: add optional output gear file

See merge request !169

add ACTS rec for sitrack

See merge request !167

Minor: update scripts

See merge request !166

add Heed simulation for TPC

See merge request !97

Update 2 files of Lumical Geometry Desgin to add W slice to the periphery of the second layer LYSO

See merge request !155

Update CyberPFA

See merge request !163

SIM: update vertex detector design and spatial resolution as designed

See merge request !165

WIP: try to support LCG 105 for both centos7 and el9

See merge request !164

Add wax absorber on the endcap (by Haopeng Li)

See merge request !161

fix: rename CaloDetectorEndcap to EcalEndcaps so it can display in G4 geom

See merge request !160

Fix: adjust magnet field simulation granularity to avoid momentum reconstruction bias;

See merge request !159

Fix the build issue when ulimit -u is unlimited.

See merge request !156

add RDAnalysis overview

See merge request !153

add RDAnalysisExternals/integration rd analysis

See merge request !152

Fix: Muon geometry memory overtaken (Barrel part)

See merge request !151

Muon endcap digi

See merge request !148

GtPythiaTool: add mother and daughter.

See merge request !147

GenTool: add Pythia8.

See merge request !146