Add ProjectStorageService (list/get/upsert/delete)

models/getprojectstorageresponse.go

@@ -0,0 +1,8 @@
+// Code generated by apigen. DO NOT EDIT.
+
+package models
+
+type GetProjectStorageResponse struct {
+	Items      []ProjectStorageItem `json:"items,omitempty"`
+	NextCursor string               `json:"nextCursor,omitempty"`
+}