RAP-258 [NFC] Code cleanups

Closes RAP-258

See merge request !683

Disable schaap-stack

See merge request !682

Improve doc on station adder

See merge request !681

AST-862 Fixes UVWFlagger output

Closes AST-862

See merge request !679

Remove special characters in yml docs

See merge request !678

Improve predict performance for threaded baselines

See merge request !675

AST-919 Update link to documentation

See merge request !674

AST-919 Remove publish-doc @ gitlab, since we use ReadTheDocs now

See merge request !672

AST-919 Build and include doxygen docs @ ReadTheDocs

See merge request !673

AST-919 Update ReadTheDocs configuration

See merge request !671

Resolve RAP-476

Closes RAP-476

See merge request !669

Improve DDECal DD sols documentation and error messages

See merge request !666

Ast 812 ddecal add tests for subtract with dd intervals

See merge request !664

RAP-483 Improve diagnostics

See merge request !665

Ast 902 Improve documentation about prediction

See merge request !663

Fix all implicit casacore::Vector casts

See merge request !661

Allow users to specify absolute position angle

See merge request !642

Resolve RAP-404 Implements parallelization over baselines for prediction.

Closes RAP-404

See merge request !637

Make patches writable

See merge request !660

Make sure that a moving phase centre can be phase rotated

See merge request !659