v19.6.0

Chore

• Clang-tidy performance-move-const-arg (#1359) (c6d189d) (@paulgessinger)
• Clang-tidy modernize-use-using (#1342) (ca0dcd6) (@paulgessinger)
• Clang-tidy readability-braces-around-statements (#1343) (989bbac) (@paulgessinger)

Refactor

• Change ConstrainedStep to be explicit (#1347) (0c76d37) (@andiwand)
• Move add* functions to python modules (#1309) (b4dc20d) (@tboldagh)

Test

• Geant4 python example (#1334) (8f07289) (@andiwand)
• Clean up and fix python examples (#1351) (e4474fb) (@andiwand)

Fix

• Improve Python full-chain ITk example (#1356) (f4ad9b7) (@timadye)
• Accumulating residual plots in boundParamResolution if only predicted==true (#1355) (6fe9ca2) (@AJPfleger)
• Add missing import for exatrkx example (#1348) (9a41907) (@paulgessinger)
• Update the Material Mapping ploting script to remove json dependency (#1319) (2256d4e) (@Corentin-Allaire)
• Add missing TFile::Close() to destructors in ROOT writers (#1344) (fac85d6) (@AJPfleger)

CI

• Switch gitlab test job to needs instead of dependencies (#1349) (5f47743) (@paulgessinger)

Documentation

• General update of some docs pages, mark some pages as outdated (#1338) (119bdea) (@paulgessinger)

Feature

• Incorporate itk_seeding into chained style for Python modules with full_chain_itk example (#1331) (577c146) (@LuisFelipeCoelho)
• Improve Python named-type argument checks (#1341) (b55ec34) (@timadye)
• AddFatras preselectParticles config for ParticleSelector (#1350) (8c1c406) (@timadye)
• Compute material variance in material mapping (#1318) (c509200) (@Corentin-Allaire)