added more document types to the list + enabled documents to be uploaded via the link browser
added more document types to the list + enabled documents to be uploaded via the link browser

sashakames/COG,sashakames/COG,EarthSystemCoG/COG,EarthSystemCoG/COG,sashakames/COG,EarthSystemCoG/COG,EarthSystemCoG/COG,sashakames/COG,sashakames/COG,EarthSystemCoG/COG,EarthSystemCoG/COG,sashakames/COG,EarthSystemCoG/COG,sashakames/COG