Workspaces should handle all data types for FILE (jpg, vtk, etc.)

[dhrogers]

Loading a valid Cinema database should always work, even if the data type in the FILE column isn't understood by the application. In the old Cinema viewers, data types that were understood could be viewed, and those that weren't understood were represented by a box (if needed in something like an image view) with a label in it that had the file name.

We can determine the correct behavior for the new workspaces, but the application should at least load the csv file to show what is in the database.

The test database for this use case is in the 'cinema_viewers' repository at 'cinema_viewers/data/file_types.cdb'