[test][2pnc] Separate properties into their own header

See merge request !2544

[test][richards] Separate properties into their own header

See merge request !2543

[test][co2] Separate properties into their own header

See merge request !2542

[test][3pnc] Separate properties into their own header

See merge request !2541

[test][mpnc] Separate properties into their own header

See merge request !2540

[test][solidenergy] Separate properties into their own header

See merge request !2539

[test][tracer] Separate properties into their own header

See merge request !2538

[test][freeflow] Separate properties into their own header

See merge request !2537

[md][embedded] Factor out sin/cos precomputation

See merge request !2536

[gridmanager] Add interface to query for existence of grid data

See merge request !2534

Feature/timestep methods

See merge request !2296

Based on initial draft by Timo Koch.

[md][newton] Fixup conflict in solutionChanged between !2291 and !2527

See merge request !2533

[propertysystem] Some cleanup

See merge request !2512

[newton] Fixup solution reset in line search update after !2291

See merge request !2532

Feature/newton linesearch

See merge request !2507

Bump package versions.

See merge request !2518

Fix/multidomain newton residual

See merge request !2527

Feature/newton variables backend

See merge request !2291