adds ability to use relation methods

added fix for mappable enums

Merge pull request #275 from laravel-enso/hotfix/testConcurrency

avoids file write concurrency during parallel testing

Merge pull request #274 from laravel-enso/fix/filterfix

fix filter

replaces deprecated box/spout with maintained openspout/openspout

removes is_active from test model

done

Update Column.php

fix typo

Apply fixes from StyleCI