JNG-4084 add gitignore (#4)

.gitignore

@@ -1,7 +1,34 @@
-target/
-!**/src/main/**/target/
-!**/src/test/**/target/
-.idea/
-**/*.iml
-transaction-logs/
-.flattened-pom.xml
+/**/target/
+/**/bin/
+/**/.settings/
+/**/.checkstyle
+/**/.idea/
+/**/*.iml
+/**/lombok.config
+# original location
+!**/config/lombok.config
+**/data/localmodel
+**/data/.config
+**/stamp.dat
+**/.index
+.mvn/timing.properties
+.output
+.metadata
+bin/
+tmp/
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.settings/
+.cproject
+.factorypath
+.buildpath
+.target
+**/.DS_Store
+/**/*.orig
+.vscode
+.release
+/build.log
+**/.flattened-pom.xml