delete .class files and add .gitignore

Signed-off-by: MregXN <mregxn@gmail.com>

.gitignore

@@ -0,0 +1,51 @@
+# IDE generated files and directories
+*.iml
+.idea/
+.vs/
+.vscode/
+
+# Output folders
+**/target/
+
+# Compiled class file
+*.class
+
+# Proto meta
+*.pb.meta
+
+# Log file
+*.log
+/syslog.txt
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# Eclipse
+.classpath
+.project
+.settings
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+# Some other generated folders/files
+/docs/dapr-sdk-actors
+/docs/dapr-sdk-autogen
+/docs/dapr-sdk
+/proto/dapr
+/proto/daprclient
+
+# macOS
+.DS_Store