feat: add event core api to runtime (#15547)

Co-authored-by: Facundo Medica <14063057+facundomedica@users.noreply.github.com>

runtime/module.go

@@ -13,6 +13,7 @@ import (
 	runtimev1alpha1 "cosmossdk.io/api/cosmos/app/runtime/v1alpha1"
 	appv1alpha1 "cosmossdk.io/api/cosmos/app/v1alpha1"
 	"cosmossdk.io/core/appmodule"
+	"cosmossdk.io/core/event"
 	"cosmossdk.io/depinject"
 
 	storetypes "cosmossdk.io/store/types"
@@ -63,6 +64,7 @@ func init() {
 			ProvideKVStoreService,
 			ProvideMemoryStoreService,
 			ProvideTransientStoreService,
+			ProvideEventService,
 		),
 		appmodule.Invoke(SetupAppBuilder),
 	)
@@ -202,3 +204,7 @@ func ProvideTransientStoreService(key depinject.ModuleKey, app *AppBuilder) stor
 	storeKey := ProvideTransientStoreKey(key, app)
 	return transientStoreService{key: storeKey}
 }
+
+func ProvideEventService() event.Service {
+	return EventService{}
+}