TernaryOperator Reduce if else operations (#56)

* feat:(slice add AppendIfAbsent function)

* feat:(slice add TernaryOperator function)

Co-authored-by: george.zheng <george.zheng@ambergroup.io>

common/common.go

@@ -0,0 +1,10 @@
+package common
+
+// TernaryOperator if true return trueValue else return falseValue
+func TernaryOperator[T any](isTrue bool, trueValue T, falseValue T) T {
+	if isTrue {
+		return trueValue
+	} else {
+		return falseValue
+	}
+}