Add explicit method or parameter for syncing given range to latest version

[Tyler Harwood]

Sometimes if incorrect data was written to the database, (if the calibration coefficient needed to be updated for instance) then it may be necessary to update a large number of datapoints, re-downloading all relevant tdms files.

Currently the preprocessing script overwrites based on the lastModified tag, re-downloading a file if the tag in the db is older than the tag pulled from the google drive on a query. This does not take into account that the configuration values may change.

We should either provide a specific sync() method or add a boolean parameter to preprocessing for check_config or sync to provide this ability. we may even want check_config to be set to true by default.