Add type of file to file upload

[anusharanganathan]

• [x] Journal with options
  • Logo
  • Paper template
  • Custom
• [x] Data paper with options
  • Data paper
  • Supplementary file
  • Metadata file

[anusharanganathan]

• Using resource_type to record the type of file in file metadata
• Added local authority for types of file for journal and data paper - commit 88ac1d4
• Modified views to set this property when editing the file (file edit) - commit 757eb5e
• Modified views to display this property when viewing the file (file show) - commit 3c09acd
• Added list of files in work form edit with ability to set the type - commit 1cc4271
  NOTE: Recently uploaded files will only appear here after saving the record. So the form needs to be saves and edited again to set the file type.