added category unit tests

added alias tests

added moved to with extension unit tests

added unnecessary scaling test

added invertnext unit tests

added nocertify test

added physical color unit test

added keywords for nonparts test

added unit test for illegal scaling

added mirrored studs test

added unit tests for official parts

added unknown subfile test

added determinant test

unknown metacommand test

added license tests

(0) -100 -15 tip

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