Vespolina: store-setup setValue () error

As said in UPGRADE-0.6.md setValue($value) has been replaced by setIndex($value)
This pr solve an error which occur when doing  php app / console Vespolina: store-setup;<
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PHP Fatal error: Call to undefined method Vespolina \ Entity \ Product \ Option :: setValue ()  Vespolina-sandbox\ vendor \ Vespolina \ commerce \ lib \ Vespolina \ Product \ Manager \ ProductManager.php on line 161