Modules: Add registry (#70859)

pkg/modules/dependencies.go

@@ -0,0 +1,11 @@
+package modules
+
+const (
+	// All includes all modules necessary for Grafana to run as a standalone application.
+	All string = "all"
+)
+
+// dependencyMap defines Module Targets => Dependencies
+var dependencyMap = map[string][]string{
+	All: {},
+}