Download the latest configuration template file when building

- So we don't have to manually copy it all the time!

main.py

@@ -1,8 +1,24 @@
 import os
 from posixpath import dirname
 
+from urllib import request
+
+
 def define_env(env):
 
+    # Ensure that the config template is always up to date
+    CFG_URL = "https://raw.githubusercontent.com/inventree/InvenTree/master/InvenTree/config_template.yaml"
+
+    response = request.urlopen(CFG_URL)
+    print(f"Reading config template from GitHub: Response {response.status}")
+    
+    if response.status == 200:
+        data = response.read()
+
+        if len(data) > 0:
+            with open("_includes/config.yaml", "w") as f:
+                f.write(str(data.decode()))
+
     @env.macro
     def listimages(subdir):
         """