BAEL-1216: Introduction to the OrientDB Java APIs (#3300)

* BAEL-1216: Introduction to the Oriented Java APIs

* OrientDB Java Graph and Document APIs

* some cleans

* BAEL-1216: Object API + code formating

* Prevent the build to failed

* Improve code and readme

* Update Readme

* Simulate failed test in jenkins pipeline

orientdb/.gitignore

@@ -0,0 +1,24 @@
+target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+nbproject/private/
+build/
+nbbuild/
+dist/
+nbdist/
+.nb-gradle/