CacheBase tweaks Added RemoveExpiredAsync Use RemoveExpiredAsync when ClearAsync is called with Duration Used Timespan rather than converting to DateTime. Pass TimeSpan all the way to IsFileOutOfDate method Add optional parameter to IsFileOutOfDate method indicating how to treat null files. Addresses #482
CacheBase tweaks
Added RemoveExpiredAsync
Use RemoveExpiredAsync when ClearAsync is called with Duration
Used Timespan rather than converting to DateTime. Pass TimeSpan all the way to IsFileOutOfDate method
Add optional parameter to IsFileOutOfDate method indicating how to treat null files.
Addresses #482

bkaankose/UWPCommunityToolkit,bkaankose/UWPCommunityToolkit