Graphql Error Handling with Spring Boot

Simple demo on how to handle server side error within a spring boot app

Milestones:

1. Initial project with generic errors : Commit 43491ef280b462611b09113abbaef09bca877f90
2. Customize errors according to the problem : Commit c788d0d0b98f8531cb920b4c89a9f11b2300bb42
3. Send relevant info to the user : Commit bd7a0b5c039c610de9c8355be0d1c5f5e5484655
4. add graphQL endpoint Security : Commit a8db33dc98ade2b41679977e1cf618fa84f2abf4
5. Test GraphQL Resolvers : Commit fdb1dd761554b40728bfbdcbf33fa7dc81383c63