Add FirmService.java

Author: JcoderPaul

Spring_part_2/src/main/java/spring/oldboy/service/FirmService.java

@@ -0,0 +1,13 @@
+package spring.oldboy.service;
+
+import spring.oldboy.repository.FirmRepository;
+
+public class FirmService {
+
+    private final FirmRepository firmRepository;
+
+    public FirmService(FirmRepository firmRepository) {
+        this.firmRepository = firmRepository;
+    }
+
+}