feat: add tenant column to eventstore (#3314)

* feat: add tenant column to eventstore

* feat: read tenant from context on push and filter

* Update 07_events_table.sql

* pass tenant to queryFactory

* fix some query tests

* init in tests

* add missing sql files

Co-authored-by: Livio Amstutz <livio.a@gmail.com>

internal/eventstore/read_model.go

@@ -12,6 +12,7 @@ type ReadModel struct {
 	ChangeDate        time.Time `json:"-"`
 	Events            []Event   `json:"-"`
 	ResourceOwner     string    `json:"-"`
+	Tenant            string    `json:"-"`
 }
 
 //AppendEvents adds all the events to the read model.
@@ -34,6 +35,9 @@ func (rm *ReadModel) Reduce() error {
 	if rm.ResourceOwner == "" {
 		rm.ResourceOwner = rm.Events[0].Aggregate().ResourceOwner
 	}
+	if rm.Tenant == "" {
+		rm.Tenant = rm.Events[0].Aggregate().Tenant
+	}
 
 	if rm.CreationDate.IsZero() {
 		rm.CreationDate = rm.Events[0].CreationDate()