Move this to use it globally

[todo]

canvas-sdk-php/src/Traits/FileSystemModelTrait.php

Lines 201 to 206 in f36fd7c

	* @todo Move this to use it globally
	*/
	$config = new AutoMapperConfig();
	$config->getOptions()->dontSkipConstructor();
	$config->registerMapping(FileSystemEntities::class, Files::class)->useCustomMapper($fileMapper);

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This issue was generated by todo based on a todo comment in f36fd7c when #64 was merged. cc @bakaphp.