added gitignore file

.gitignore

+# Directories #
+/build/
+/bin/
+target/
+  
+# OS Files #
+.DS_Store
+  
+*.class
+  
+# Package Files #
+*.jar
+*.war
+*.ear
+*.db
+  
+######################
+# Windows
+######################
+  
+# Windows image file caches
+Thumbs.db
+  
+# Folder config file
+Desktop.ini
+  
+######################
+# OSX
+######################
+  
+.DS_Store
+.svn
+  
+# Thumbnails
+._*
+  
+# Files that might appear on external disk
+.Spotlight-V100
+.Trashes
+  
+  
+######################
+# Eclipse
+######################
+  
+*.pydevproject
+.project
+.metadata
+bin/**
+tmp/**
+tmp/**/*
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.classpath
+.settings/
+.loadpath
+/src/main/resources/rebel.xml
+# External tool builders
+.externalToolBuilders/
+  
+# Locally stored "Eclipse launch configurations"
+*.launch
+  
+# CDT-specific
+.cproject
+  
+# PDT-specific
+.buildpath
+/target/
+ 
+# Visual Studio Code
+.vscode
+ 
+ 
+# ---- IntelliJ IDEA
+*.iws
+*.iml
+*.ipr
+.idea/
\ No newline at end of file