BAEL-1027: Introduction to GraphQL - initial commit (#2515)

* spring beans DI examples

* fix-1: shortening examples

* List of Rules Engines in Java

* BAEL-812: Openl-Tablets example added

* BAEL-812: artifacts names changed

* BAEL-812: moving rule-engines examples to rule-engines folder

* BAEL-812: removing evaluation article files

* BAEL-812: folder renamed

* BAEL-812: folder renamed

* BAEL-812: pom.xml - parent added

* BAEL-1027: Introduction to GraphQL - initial commit

graphql/graphql-java/payload-examples/deleteUser.json

@@ -0,0 +1,6 @@
+{
+  "query": "mutation($name: String! ){ deleteUser ( id: $id) { id name email age} }",
+  "parameters": {
+    "id": 2
+  }
+}