Add NosTV by request

python/schemes/NosTV.py

@@ -0,0 +1,7 @@
+b64challenge = base64.b64encode(challenge).decode()
+res = await (await pyfetch(licUrl,
+    method="POST",
+    headers=licHeaders,
+    body=json.dumps({"challenge": b64challenge})
+)).json()
+licence = base64.b64decode(res["license"][0].encode())