fix: correction of bug as per issue #24 description (#28)

[phillima]

• Test file for unnamed package

Co-authored-by: Maik Henrique maik.hsp.contato@gmail.com Co-authored-by: Bruno Rodrigues bruno99sr@gmail.com

• fix: correction of bug as per issue #24 description

• definition of default behavior for classes without a package declaration

• fixes #24

• minor refactoring

fixes #24

Co-Authored-By: Maik 48337058+MaikHenriqueSP@users.noreply.github.com Co-Authored-By: Felipe Mandu Pereira felipemandupereira@outlook.com Co-Authored-By: Bruno S Rodrigues 34436334+brusangues@users.noreply.github.com Co-Authored-By: RafawsMasm <41874395+RafawsMasm@users.noreply.github.com

• correcting typo in class name and reallocation testSchemaChildShouldNotHaveChildren

Co-Authored-By: Maik 48337058+MaikHenriqueSP@users.noreply.github.com Co-Authored-By: Felipe Mandu Pereira felipemandupereira@outlook.com Co-Authored-By: Bruno S Rodrigues 34436334+brusangues@users.noreply.github.com Co-Authored-By: RafawsMasm <41874395+RafawsMasm@users.noreply.github.com

• change message in RunTimeException

Co-Authored-By: Maik 48337058+MaikHenriqueSP@users.noreply.github.com Co-Authored-By: Felipe Mandu Pereira felipemandupereira@outlook.com Co-Authored-By: Bruno S Rodrigues 34436334+brusangues@users.noreply.github.com Co-Authored-By: RafawsMasm <41874395+RafawsMasm@users.noreply.github.com

• correct typo in class name

Co-Authored-By: Maik 48337058+MaikHenriqueSP@users.noreply.github.com Co-Authored-By: Felipe Mandu Pereira felipemandupereira@outlook.com Co-Authored-By: Bruno S Rodrigues 34436334+brusangues@users.noreply.github.com Co-Authored-By: RafawsMasm <41874395+RafawsMasm@users.noreply.github.com

Co-authored-by: Bruno S Rodrigues 34436334+brusangues@users.noreply.github.com Co-authored-by: Bruno Rodrigues bruno99sr@gmail.com Co-authored-by: Felipe Mandu Pereira felipemandupereira@outlook.com Co-authored-by: Felipe Mandu Pereira fmandu@pagseguro.com