[Feature] Move parameters to bundle config

[pmartelletti]

Proably is best to move the parameters to the bundle config.

tahoe_multi_tenancy.user.class: Tahoe\ExampleBundle\Entity\User
tahoe_multi_tenancy.tenant.class: Tahoe\ExampleBundle\Entity\Tenant

Should be easy to move it under Configuration.php class.

[StephenGillCoop]

@pmartelletti Did you do this?