addInternal() call expirationCheck() is not a good idea

[KR-Yuan]

when create a cachetable to init expirationCheck() function , maybe better than call it in addInternal function

[JasonDevops]

yes，I know that you question was right，Last night I was trying to run the projects，When I tested expirationCheck() function， But I found that it has bugs，When accessedOn is almost greater now time（time := time.Now()），So that expirationCheck() function can't callback these cache which was expired.