configure script added, restart script added, uninstall script added, upgrade script added, config.py excluded from repository and added to .gitignore, install.py improved, generate nginx config fixed

powershell.py

@@ -0,0 +1,9 @@
+import subprocess
+
+def run_command(cmd, directory):
+    command = subprocess.run(["powershell", "-Command", cmd], cwd=directory, shell=True, check=True)
+    return command
+
+def run_command_no_dir(cmd):
+    command = subprocess.run(["powershell", "-Command", cmd], shell=True, check=True)
+    return command