Add support for MacOS, Linux, and WSL (#21)

* Initial commit

* Initial commit with new code

* Add comments

* Move GPTQ out of if

* Fix install on Arch Linux

* Fix case where install was aborted

If the install was aborted before a model was downloaded, webui wouldn't run.

* Update start_windows.bat

Add necessary flags to Miniconda installer
Disable Start Menu shortcut creation
Disable ssl on Conda
Change Python version to latest 3.10,
I've noticed that explicitly specifying 3.10.9 can break the included Python installation

* Update bitsandbytes wheel link to 0.38.1

Disable ssl on Conda

* Add check for spaces in path

Installation of Miniconda will fail in this case

* Mirror changes to mac and linux scripts

* Start with model-menu

* Add updaters

* Fix line endings

* Add check for path with spaces

* Fix one-click updating

* Fix one-click updating

* Clean up update scripts

* Add environment scripts

---------

Co-authored-by: jllllll <3887729+jllllll@users.noreply.github.com>
Co-authored-by: oobabooga <112222186+oobabooga@users.noreply.github.com>

environment_windows.bat

@@ -0,0 +1,20 @@
+@echo off
+
+cd /D "%~dp0"
+
+echo "%CD%"| findstr /C:" " >nul && echo This script relies on Miniconda which can not be silently installed under a path with spaces. && goto end
+
+set PATH=%PATH%;%SystemRoot%\system32
+
+@rem config
+set CONDA_ROOT_PREFIX=%cd%\installer_files\conda
+set INSTALL_ENV_DIR=%cd%\installer_files\env
+
+@rem activate installer env
+call "%CONDA_ROOT_PREFIX%\condabin\conda.bat" activate "%INSTALL_ENV_DIR%" || ( echo. && echo Miniconda hook not found. && goto end )
+
+@rem enter commands
+cmd /k "%*"
+
+:end
+pause