Support Docker VM manager and provider (#75)

* Add docker provider framework

* Update VM download link

* Add stop container

* Update docker manager & provider

* Update

* Update

* Update provider

desktop_env/controllers/python.py

@@ -12,9 +12,10 @@ logger = logging.getLogger("desktopenv.pycontroller")
 
 class PythonController:
     def __init__(self, vm_ip: str,
+                 server_port: int,
                  pkgs_prefix: str = "import pyautogui; import time; pyautogui.FAILSAFE = False; {command}"):
         self.vm_ip = vm_ip
-        self.http_server = f"http://{vm_ip}:5000"
+        self.http_server = f"http://{vm_ip}:{server_port}"
         self.pkgs_prefix = pkgs_prefix  # fixme: this is a hacky way to execute python commands. fix it and combine it with installation of packages
         self.retry_times = 3
         self.retry_interval = 5