Merge remote-tracking branch 'origin/pugs-frobenius' into hyperplastic

src/algebra/TinyMatrix.hpp

src/language/ast/ASTNodeBuiltinFunctionExpressionBuilder.cpp

src/utils/PugsMacros.hpp

tests/test_ASTNodeBuiltinFunctionExpressionBuilder.cpp

tests/test_BuiltinFunctionEmbedder.cpp

tests/test_BuiltinFunctionRegister.hpp

tests/test_TinyMatrix.cpp