In this PR we adapt field permission to two things
1. Connect: the recent insertion of the connect feature introduces the
possibility to have "connect" objects in typeORM's expressionMap's
valueSet, where we previously only had column names (if i followed
correctly). For instance for a person object that a N - 1 relationship
to company, person will have both companyId and company as possible
valueSet keys for the upsert. We need to reflect that in our
`getColumnNameToFieldMetadataIdMap` util that returns a map containing
every possible value we could encounter in valueSet. In an attempt to
tie this to the schema generation where this is introduced, I created
the shallow util extractGraphQLRelationFieldNames (probably ill-named -
im willing to update the name if @etiennejouan has a better idea?) to
remind us that these two are linked.
2. CreateMany: When calling query builders methods directly on custom
object (like we do in graphql-create-many-resolver), we need to be
careful to call them with a selection of readable fields. We had a
debate on whether we should compute this selection containing all
readable fields by default under the hood when no selected fields are
indicated. I am still not 100% convinced as I think it should remain the
caller's responsibility, but this case reminds us that it could easily
be forgotten by developers - although it is all the more the case as we
don't have seeds yet that help us realize that ([PR on the
way](https://github.com/twentyhq/twenty/pull/13646)).
