DodoApp: Prepare dodo-app to support multiple app repositories

Previously Git repository storing configuration for PCloud
environment, linked dodo-app repositories directly. After this change,
dodo-app will first create config repository which will link
individual application repositories. And PCloud env will link to the
config repo. That way dodo-app manger will be able to create multiple
app repositories per installation.

Change-Id: I647cacda7a9a4f241d2acc28ae5d8bbd8c6424d6
diff --git a/core/installer/app_repository.go b/core/installer/app_repository.go
index f35eb97..27b9b43 100644
--- a/core/installer/app_repository.go
+++ b/core/installer/app_repository.go
@@ -36,6 +36,7 @@
 }
 
 var envAppConfigs = []string{
+	"values-tmpl/dodo-app-instance.cue",
 	"values-tmpl/certificate-issuer-private.cue",
 	"values-tmpl/certificate-issuer-public.cue",
 	"values-tmpl/appmanager.cue",