feat: projections auto create their tables (#3324)

* begin init checks for projections

* first projection checks

* debug notification providers with query fixes

* more projections and first index

* more projections

* more projections

* finish projections

* fix tests (remove db name)

* create tables in setup

* fix logging / error handling

* add tenant to views

* rename tenant to instance_id

* add instance_id to all projections

* add instance_id to all queries

* correct instance_id on projections

* add instance_id to failed_events

* use separate context for instance

* implement features projection

* implement features projection

* remove unique constraint from setup when migration failed

* add error to failed setup event

* add instance_id to primary keys

* fix IAM projection

* remove old migrations folder

* fix keysFromYAML test

internal/eventstore/read_model.go

@@ -12,7 +12,7 @@ type ReadModel struct {
 	ChangeDate        time.Time `json:"-"`
 	Events            []Event   `json:"-"`
 	ResourceOwner     string    `json:"-"`
-	Tenant            string    `json:"-"`
+	InstanceID        string    `json:"-"`
 }
 
 //AppendEvents adds all the events to the read model.
@@ -35,8 +35,8 @@ 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.InstanceID == "" {
+		rm.InstanceID = rm.Events[0].Aggregate().InstanceID
 	}
 
 	if rm.CreationDate.IsZero() {