refactor(10.2-01): nest framework packages under modules

- Move remaining beach packages and embedded admin assets\n- Rewrite framework, example, build, and gate paths

modules/lagoon/attach/app_test.go

@@ -0,0 +1,10 @@
+package attach
+
+import (
+	"git.golem15.com/golem15/summercms/modules/backpack"
+	"git.golem15.com/golem15/summercms/modules/compass"
+)
+
+func backpackApp(cfg *compass.Config) *backpack.App {
+	return backpack.New(cfg)
+}