Branch status prior to Nov 4th 2022 upgrade

Extra package installation for Lichen Python & C/C++ tokenization (Su…

…bmitty#2215)

Install SQLite driver for PHP for Vagrant (Submitty#2113)

Revision of autograding scheduler to facilitate autograding worker ma…

…chines (Submitty#1813)

This PR/commit will be tagged v.1.1 as it represents a significant shift in autograding scheduling.

Instead of 1 daemon to schedule autograding on the primary machine hosting the website, we now have 2 daemons: a shipper daemon prepare autograding tasks and a worker daemon to handle tasks.

The primary machine can be configured to only have the shipper daemon (if all autograding should be handled by other machines) or both a shipper and a worker daemon. Worker machines will only have the worker daemon.

Ssh keys will be stored on the primary machine to allow push & pull of files from each worker machine.

Issues Submitty#1830, Submitty#1831, Submitty#1832 have been opened to finish remaining work from @MasterOdin 's review comments.

switch from integer to numeric for gradeable component total (Submitt…

…y#1608)

* added database changes to fix the problem

* allow floating point in component total

* fix

Database Updates & Fix Bugs with Manual grading Marks (Submitty#1569)

Fixed Overwrite grader and creating a new mark, immediately saving it wouldn't work and publish is now implemented

* Now shows former hidden marks in create/edit gradeable

* missed something

* missed something

* fixed that when you add a new mark and save it, it won't save

* fixed overwrite grader as well

* added publish

* wip

* Marks should no longer clobber each other

* readded delete components

* recommented delete questions. still broken. oops

* Publish now works

* wip

* wip

* it works? may test later

* add allow_late_submission boolean

* add time zone to gcd_grade_time timestamp

* add update_database.py script (written by Matt)

Fix Errant "Version Conflict" Message When a Submission is not Fully …

…Graded (Submitty#1588)

* Fixed the issue.

* tweak message

edit README (Submitty#1003)

* edit README

* update

edit README (Submitty#1003)

* edit README

* update

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