Option for keeping original image data

[Nicholas-Schaub]

Description
When uploading images to a collection, there should be an option to keep the original data. Currently, all images are converted to tiled Tiff. Some existing tools for processing certain types of image data either 1) only work on a particular image format or 2) do not read tiled Tiff's. Further, some of these file formats include metadata at specific locations in the file, and may not be recognized by an existing tool after converted to tiled Tiff.

Proposal
Include option on frontend to keep original data prior to tiled Tiff conversion. This should be a property that is set prior to uploading files, maybe set when naming the collection.

[MyleneSimon]

To summarize discussions from our last meeting:

• there will be an "advanced" option in the frontend to uncheck the box "Convert to tiled OME TIF" (we will need some warnings here, and maybe allow modifications to this option only if the collection is empty)
• right now file extensions considered as being images are hardcoded in frontend to sort out images from metadata files, that may be challenging if more "exotic" formats are uploaded
• conversion to tiled OME TIF will not be done after upload of images if box was unchecked
• a boolean will be added in the imageCollection model isTiledOmeTif
• we could add something to the plugin manifest to check for isTiledOmeTif when it matters (ie when tiled tif are a required for example)
• we are not planning on providing further support for image formats that will fall under the "not tiled Ome Tif" category

Tentatively putting this issue in milestone 3.0.0-RC1