isFileWithIDCached Enhancement Request

[davegreco]

This function works as advertised, to the best of it's ability to.

As it works currently it properly indicates if a file relating to the ID provided exists within the cache. However, since the ID of the file does not change with file versioning a user of this SDK is unable to determine if a specific version of this file has been cached.

I was able to verify that internally the caching mechanism is taking the version into account, when it is given a BOXFile object with a different SHA-1 hash, it will trigger the download of that already cached file resulting in the latest version of it being stored locally.

It would be useful for the isFileWithIDCached to take the SHA-1 that way you could accurately anticipate which files need to be downloaded again to have their current versions available locally.