Add Banana Cake Pop to services (graphql#1275)

Author: rstaib

src/content/code/services/bananacakepop.md

@@ -0,0 +1,6 @@
+---
+name: Banana Cake Pop
+description: A feature-rich GraphQL IDE by [ChilliCream](https://chillicream.com) that let's you explore, manage, and test your GraphQL APIs. Check it out [here](https://bananacakepop.com).
+url: https://bananacakepop.com
+github: ChilliCream/hotchocolate
+---