* Add support to automatic initlize the workspace host on load

* Add support for auto saving

* Add code for workspace host

* Refactor the code

* Change the functions from async to normal function

* Replace exec() call to control docker to dockerode functions

* Remove some experimental functionality

* Add code to delete all local code in _delContainer()

* Replace exec() call to AWS SDK calls

* Add code to import the config so that interface.js can be run locally

* Change the hardcoded path and fix some minor error handling issue

* README update

* minor README fix

* must run interface from main PL dir

* Fix CI

* Update socket.io path

Co-authored-by: Nicolas Nytko <nicknytko@gmail.com>

* Replace the localhost with host.docker.internal

* Using config.json to import the workspace bucket name

* Fully support creating new workspace container on demand with auto-port-assigning

* add config.workspaceLocalhost parameter

* add xterm container

* add error reporting to workspace socket

* Add workspace init for S3/DB

* Fix callback

* Update workspace.js

* Remove example-files dir

* Fix typo

* Update lib/workspaceSocket.js

* Add support for running `interface.js` inside container

* Fix push/pull paths when running natively

* Update readme for containerized `interface.js`

* Update readme to mention external grading flags

* change route order, update url rewriting, add jupyter container

* Add Jupyter Lab instructions

Co-authored-by: Tim Yang <timothy.d.yang@gmail.com>
Co-authored-by: Matthew West <mwest@illinois.edu>
Co-authored-by: Tim Yang <tdy@users.noreply.github.com>
Co-authored-by: Nicolas Nytko <nicknytko@gmail.com>