Add COG rendering from a locally served tif file (blob)

Render a COG geotif file with openlayers. The COG file is served locally from static resources, like, for example, resources/public/images. 

To test this, it assumes the TCI.tiff is found in resources/public/images to be served and accessed on URL/images/TCI.tif. The TCI.tif example file can be found here.