Issue #2994535 by Steven Jones: Processors are broken

imageapi_optimize_binaries.services.yml

src/ImageAPIOptimizeProcessorBinaryBase.php

src/ImageAPIOptimizeShellOperationsInterface.php

src/Plugin/ImageAPIOptimizeProcessor/AdvDef.php

src/Plugin/ImageAPIOptimizeProcessor/AdvPng.php

src/Plugin/ImageAPIOptimizeProcessor/JfifRemove.php

src/Plugin/ImageAPIOptimizeProcessor/JpegOptim.php

src/Plugin/ImageAPIOptimizeProcessor/JpegTran.php

src/Plugin/ImageAPIOptimizeProcessor/OptiPng.php

src/Plugin/ImageAPIOptimizeProcessor/PngCrush.php

src/Plugin/ImageAPIOptimizeProcessor/PngOut.php

src/Plugin/ImageAPIOptimizeProcessor/PngQuant.php

src/ShellOperations.php

tests/src/Unit/AdvDefTest.php

tests/src/Unit/AdvPngTest.php

tests/src/Unit/BinaryTestCase.php