Tiered uploads facility

[lukasmueller]

Create a "tiered" upload process that works as follows:

• the upload is separated from the checking and loading steps

• clicking on upload will upload the file and present a central uploaded files screen with 3 columns

• The first column shows the upload files, the second a button for checking and info if it passed, the third a button for uploading the data and a message if it is uploaded successfully

• There could be a table current uploads and a table below for completed uploads

• All verification step and upload steps use CXGN::Jobs

• uploaded files are also archived in the archive directory as before