Added logging mechanism for user actions.

src/main/java/net/gepafin/tendermanagement/enums/UserActionLogsEnum.java

@@ -0,0 +1,20 @@
+package net.gepafin.tendermanagement.enums;
+
+import com.fasterxml.jackson.annotation.JsonValue;
+
+public enum UserActionLogsEnum {
+    LOGIN("LOGIN"), LOGOUT("LOGOUT"), UPDATE("UPDATE"), DELETE("DELETE"), VIEW("VIEW"), INSERT("INSERT");
+
+    private final String value;
+
+    UserActionLogsEnum(String value) {
+
+        this.value = value;
+    }
+
+    @JsonValue
+    public String getValue() {
+
+        return value;
+    }
+}