Position Description Interface

[bryantal]

• This PR fixes issue #292 (Task 2 for this issue is not completed but a separate issue is made for it. issue #325 )
• A new interface is now available for both supervisors and labor admins in the sidebar (it is named ‘Position Descriptions’ for both).
• Supervisors are able to view past and current versions of the position description and request and edit to make a newer version.
• Pending requests appear for labor admins and they have the ability to make changes to the fields available and either deny or accept the request.
• Emailing is not being handled in this PR for any of the actions happening in this process
• Changes are made to the database and there are 2 new tables added that will support this new interface.
• Previous position descriptions are added to our local database and we have the export file available as an attachment.
• There are some dummy position descriptions available in the demo data but for more realistic data refer to the attachment.
• Notes: Some position descriptions were not added because they did not have any POSN CODE or WLS but they can be added easily through our interface
• Notes: We are not able to compare our position description data with Tracy as we do with the position table. The records in the position table are not complete. For our work, we only needed the POSN_CODE to be correct. The rest of the data was not needed and not always available in some files as well. We can fix this issue by pulling the positions from TRACY, and updating the records to match the information in TRACY. We can also add in new position from TRACY that we do not have in our tables. Since we could not test without access to TRACY, we did not implement this
• Notes: If you need to use the scripts to add new files, they are located in /database folder and they need to be executed in the following order:
• database/remove_space_file_name.py : in case there is any space in the file name
• database/convert_doc_to_txt.py: To convert doc/docx to a txt file
• database/positionScraper.py : to add the needed field to the database